Search Results for compound
Searching compound for 2-amino-4-(methylsulfonimidoyl)butanoic acid returned 67296 results.
Displaying compounds 1326 - 1350 of 67296 in total
FDB023338
3715-10-4
5-[(diaminomethylidene)amino]-2-oxopentanoic acid
Matched synonyms: … 5-((Aminoiminomethyl)amino)-2-oxopentanoic acid ... 5-((Aminoiminomethyl)amino)-2-oxopentanoate ... 2-oxo-5-Guanidino-pentanoic acid …
Matched name: … 2-Oxoarginine …
Matched iupac: … 5-[(diaminomethylidene)amino]-2-oxopentanoic acid …
Matched description: … 2-Oxoarginine is a guanidino compound metabolite of arginine catabolism. 2-Oxoarginine levels are increased ... Accumulation of arginine metabolites (such as guanidino compounds) especially 2-oxoarginine, may produce …
Matched name: … 2-Oxoarginine …
Matched iupac: … 5-[(diaminomethylidene)amino]-2-oxopentanoic acid …
Matched description: … 2-Oxoarginine is a guanidino compound metabolite of arginine catabolism. 2-Oxoarginine levels are increased ... Accumulation of arginine metabolites (such as guanidino compounds) especially 2-oxoarginine, may produce …
FDB001460
24268-17-5
2-(2,2,3-trimethyl-4-oxocyclopentyl)acetic acid
Matched name: … alpha-Campholonic acid …
Matched iupac: … 2-(2,2,3-trimethyl-4-oxocyclopentyl)acetic acid …
Matched description: … Alpha-campholonic acid can be found in common sage, which makes alpha-campholonic acid a potential biomarker ... Alpha-campholonic acid, also known as A-campholonate, belongs to iridoids and derivatives class of compounds ... Alpha-campholonic acid is slightly soluble (in water) and a weakly acidic compound (based on its pKa) …
Matched iupac: … 2-(2,2,3-trimethyl-4-oxocyclopentyl)acetic acid …
Matched description: … Alpha-campholonic acid can be found in common sage, which makes alpha-campholonic acid a potential biomarker ... Alpha-campholonic acid, also known as A-campholonate, belongs to iridoids and derivatives class of compounds ... Alpha-campholonic acid is slightly soluble (in water) and a weakly acidic compound (based on its pKa) …
FDB022250
16655-75-7
(2S,4S,5R,6R)-4-(acetyloxy)-5-acetamido-2-hydroxy-6-(1,2,3-trihydroxypropyl)oxane-2-carboxylic acid
Matched synonyms: … 4-acetate 5-(acetylamino)-3,5-dideoxy-D-glycero-D-galacto-2-Nonulosonic acid ... 4-acetate 5-(acetylamino)-3,5-dideoxy-D-glycero-D-galacto-2-Nonulosonate ... N,4-O-Diacetylneuraminic acid …
Matched name: … N-Acetyl-4-O-acetylneuraminic acid …
Matched iupac: … (2S,4S,5R,6R)-4-(acetyloxy)-5-acetamido-2-hydroxy-6-(1,2,3-trihydroxypropyl)oxane-2-carboxylic acid …
Matched description: … N-Acetyl-4-O-acetylneuraminic acid is a component of glycoprotein- and glycolipid-bound sialic acids …
Matched name: … N-Acetyl-4-O-acetylneuraminic acid …
Matched iupac: … (2S,4S,5R,6R)-4-(acetyloxy)-5-acetamido-2-hydroxy-6-(1,2,3-trihydroxypropyl)oxane-2-carboxylic acid …
Matched description: … N-Acetyl-4-O-acetylneuraminic acid is a component of glycoprotein- and glycolipid-bound sialic acids …
FDB015727
7664-41-7
N-ethyl-4-[(4-{ethyl[(3-sulfophenyl)methyl]amino}phenyl)(2-sulfophenyl)methylidene]-N-[(3-sulfophenyl)methyl]cyclohexa-2,5-dien-1-iminium
Matched synonyms: … N-Ethyl-N-[4-[[4-[ethyl[(3-sulfophenyl)methyl]amino]phenyl](2-sulfophenyl)methylene]-2,5-cyclohexadien ... Acid blue 9 ... Food blue 2 …
Matched iupac: … N-ethyl-4-[(4-{ethyl[(3-sulfophenyl)methyl]amino}phenyl)(2-sulfophenyl)methylidene]-N-[(3-sulfophenyl …
Matched iupac: … N-ethyl-4-[(4-{ethyl[(3-sulfophenyl)methyl]amino}phenyl)(2-sulfophenyl)methylidene]-N-[(3-sulfophenyl …
FDB021944
488-15-3
(2R,3R)-2-hydroxy-3-methylpentanoic acid
Matched synonyms: … 2-hydroxy-3-methyl-Valeric acid ... 2-Hydroxy-3-methylvaleric acid ... 2-Hydroxy-3-methyl-pentanoic acid …
Matched name: … 2-Hydroxy-3-methylpentanoic acid …
Matched iupac: … (2R,3R)-2-hydroxy-3-methylpentanoic acid …
Matched description: … 2-Hydroxy-3-methylpentanoic acid or 2-hydroxy-3-methylvaleric acid (HMVA) is an organic acid generated ... It is derived from the reduction of 2-Keto-3-methylvaleric acid (KMVA), possibly through the action of ... There are 4 stereoisomers of HMVA (2S,3S-HMVA, 2R,3R-HMVA, 2S,3R-HMVA and 2R,3S-HMVA), of which the 2S …
Matched name: … 2-Hydroxy-3-methylpentanoic acid …
Matched iupac: … (2R,3R)-2-hydroxy-3-methylpentanoic acid …
Matched description: … 2-Hydroxy-3-methylpentanoic acid or 2-hydroxy-3-methylvaleric acid (HMVA) is an organic acid generated ... It is derived from the reduction of 2-Keto-3-methylvaleric acid (KMVA), possibly through the action of ... There are 4 stereoisomers of HMVA (2S,3S-HMVA, 2R,3R-HMVA, 2S,3R-HMVA and 2R,3S-HMVA), of which the 2S …
FDB007040
3930-19-6
5-amino-6-(7-amino-6-methoxy-5,8-dioxo-5,8-dihydroquinolin-2-yl)-4-(2-hydroxy-3,4-dimethoxyphenyl)-3-methylpyridine-2-carboxylic acid
Matched iupac: … 5-amino-6-(7-amino-6-methoxy-5,8-dioxo-5,8-dihydroquinolin-2-yl)-4-(2-hydroxy-3,4-dimethoxyphenyl)-3- ... methylpyridine-2-carboxylic acid …
FDB028403
38339-06-9
2-[3-methoxy-4-(sulfooxy)phenyl]acetic acid
Matched synonyms: … Homovanillic acid 4-sulfate ... 4-Sulfooxy-3-methoxyphenylacetic acid ... 3-methoxy-4-(sulfooxy)-benzeneacetic acid …
Matched name: … Homovanillic acid sulfate …
Matched iupac: … 2-[3-methoxy-4-(sulfooxy)phenyl]acetic acid …
Matched description: … as a marker of metabolic stress caused by 2-deoxy-D-glucose. ... Homovanillic acid sulfate is a component of olive oil and is a major catecholamine metabolite.It is used ... In psychiatry and neuroscience, brain and cerebrospinal fluid levels of homovanillic acid (HVA) are measured …
Matched name: … Homovanillic acid sulfate …
Matched iupac: … 2-[3-methoxy-4-(sulfooxy)phenyl]acetic acid …
Matched description: … as a marker of metabolic stress caused by 2-deoxy-D-glucose. ... Homovanillic acid sulfate is a component of olive oil and is a major catecholamine metabolite.It is used ... In psychiatry and neuroscience, brain and cerebrospinal fluid levels of homovanillic acid (HVA) are measured …
FDB014935
25841-53-6
(2E,4E)-5-[1-hydroxy-6-(hydroxymethyl)-2,6-dimethyl-4-oxocyclohex-2-en-1-yl]-3-methylpenta-2,4-dienoic acid
Matched synonyms: … 5-[1-Hydroxy-6-(hydroxymethyl)-2,6-dimethyl-4-oxo-2-cyclohexen-1-yl]-3-methyl-2,4-pentadienoic acid ... 13-Hydroxyabscisic acid …
Matched name: … 13-Hydroxyabscisic acid …
Matched iupac: … (2E,4E)-5-[1-hydroxy-6-(hydroxymethyl)-2,6-dimethyl-4-oxocyclohex-2-en-1-yl]-3-methylpenta-2,4-dienoic ... acid …
Matched description: … Constituent of cowpea (Vigna unguiculata) fruits. 13-Hydroxyabscisic acid is found in pulses and cowpea …
Matched name: … 13-Hydroxyabscisic acid …
Matched iupac: … (2E,4E)-5-[1-hydroxy-6-(hydroxymethyl)-2,6-dimethyl-4-oxocyclohex-2-en-1-yl]-3-methylpenta-2,4-dienoic ... acid …
Matched description: … Constituent of cowpea (Vigna unguiculata) fruits. 13-Hydroxyabscisic acid is found in pulses and cowpea …
FDB012010
33228-65-8
3,5-dimethoxy-4-{[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}benzoic acid
Matched synonyms: … Benzoic acid, 4-(beta-D-glucopyranosyloxy)-3,5-dimethoxy- ... Syringin 4-O-beta-glucoside ... Glucosyringic acid …
Matched name: … Glucosyringic acid …
Matched iupac: … 3,5-dimethoxy-4-{[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}benzoic acid …
Matched description: … In model 2, contains at least two galloyl units C-C coupled to each other, and do not contain a glycosidically ... Glucosyringic acid can be found in fennel, which makes glucosyringic acid a potential biomarker for the ... Glucosyringic acid, also known as glucosyringate, is a member of the class of compounds known as hydrolyzable …
Matched name: … Glucosyringic acid …
Matched iupac: … 3,5-dimethoxy-4-{[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}benzoic acid …
Matched description: … In model 2, contains at least two galloyl units C-C coupled to each other, and do not contain a glycosidically ... Glucosyringic acid can be found in fennel, which makes glucosyringic acid a potential biomarker for the ... Glucosyringic acid, also known as glucosyringate, is a member of the class of compounds known as hydrolyzable …
(2S,3S,4S,5R,6S)-3,4,5-trihydroxy-6-(2-hydroxy-5-methylphenoxy)oxane-2-carboxylic acid
Matched name: … 4-Methylcatechol 2-glucuronide …
Matched iupac: … (2S,3S,4S,5R,6S)-3,4,5-trihydroxy-6-(2-hydroxy-5-methylphenoxy)oxane-2-carboxylic acid …
Matched iupac: … (2S,3S,4S,5R,6S)-3,4,5-trihydroxy-6-(2-hydroxy-5-methylphenoxy)oxane-2-carboxylic acid …
FDB016997
87251-83-0
(2S)-3-phenyl-2-({[(3S,4S,5R)-2,3,4-trihydroxy-5-(hydroxymethyl)oxolan-2-yl]methyl}amino)propanoic acid
Matched synonyms: … 1-[(1-Carboxy-2-phenylethyl)amino]-1-deoxyfructose, 9CI …
Matched iupac: … (2S)-3-phenyl-2-({[(3S,4S,5R)-2,3,4-trihydroxy-5-(hydroxymethyl)oxolan-2-yl]methyl}amino)propanoic acid …
Matched iupac: … (2S)-3-phenyl-2-({[(3S,4S,5R)-2,3,4-trihydroxy-5-(hydroxymethyl)oxolan-2-yl]methyl}amino)propanoic acid …
FDB024096
65848-03-5
3-[(2E,6E,10E,14E,18E)-3,7,11,15,19,23-hexamethyltetracosa-2,6,10,14,18,22-hexaen-1-yl]-4-hydroxybenzoic acid
Matched synonyms: … 3-Hexaprenyl-4-hydroxybenzoic acid ... 3-(3,7,11,15,19,23-hexamethyl-2,6,10,14,18,22-tetracosahexaenyl)-4-hydroxy-benzoic acid ... (all-e)-3-(3,7,11,15,19,23-Hexamethyl-2,6,10,14,18,22-tetracosahexaenyl)-4-hydroxybenzoic acid …
Matched name: … 3-Hexaprenyl-4-hydroxybenzoic acid …
Matched iupac: … acid ... 3-[(2E,6E,10E,14E,18E)-3,7,11,15,19,23-hexamethyltetracosa-2,6,10,14,18,22-hexaen-1-yl]-4-hydroxybenzoic …
Matched description: … [HMDB]. 3-Hexaprenyl-4-hydroxybenzoic acid is found in many foods, some of which are wakame, sweet potato ... 3-hexaprenyl-4-hydroxybenzoate is an intermediate in ubiquinone biosynthesis and is produced from 4-hydroxybenzoate ... by the enzyme 4-hydroxybenzoate hexaprenyltransferase. …
Matched name: … 3-Hexaprenyl-4-hydroxybenzoic acid …
Matched iupac: … acid ... 3-[(2E,6E,10E,14E,18E)-3,7,11,15,19,23-hexamethyltetracosa-2,6,10,14,18,22-hexaen-1-yl]-4-hydroxybenzoic …
Matched description: … [HMDB]. 3-Hexaprenyl-4-hydroxybenzoic acid is found in many foods, some of which are wakame, sweet potato ... 3-hexaprenyl-4-hydroxybenzoate is an intermediate in ubiquinone biosynthesis and is produced from 4-hydroxybenzoate ... by the enzyme 4-hydroxybenzoate hexaprenyltransferase. …
FDB020540
135754-92-6
(2E,4E)-5-(4-hydroxyphenyl)penta-2,4-dienoic acid
Matched synonyms: … Avenalumic acid …
Matched name: … Avenalumic acid …
Matched iupac: … (2E,4E)-5-(4-hydroxyphenyl)penta-2,4-dienoic acid …
Matched description: … Avenalumic acid is found in oat and cereals and cereal products. …
Matched name: … Avenalumic acid …
Matched iupac: … (2E,4E)-5-(4-hydroxyphenyl)penta-2,4-dienoic acid …
Matched description: … Avenalumic acid is found in oat and cereals and cereal products. …
FDB022054
68592-22-3
2-(4-hydroxycyclohexyl)acetic acid
Matched synonyms: … cis-4-Hydroxycyclohexylacetic acid ... 4-Hydroxycyclohexylacetate ... 4-Hydroxy-cyclohexylessigsaeure …
Matched name: … cis-4-Hydroxycyclohexylacetic acid …
Matched iupac: … 2-(4-hydroxycyclohexyl)acetic acid …
Matched description: … Cis-4-hydroxycyclohexylacetic acid is a tyrosine metabolite that has been found in the urine of a patient ... oxidation step, followed by a rearrangement step to form homogentisic acid (Tomoeda et al., 2000). ... by catalyzing the conversion of 4-hydroxyphenylpyruvate to homogentisate (Hager et al., 1957). …
Matched name: … cis-4-Hydroxycyclohexylacetic acid …
Matched iupac: … 2-(4-hydroxycyclohexyl)acetic acid …
Matched description: … Cis-4-hydroxycyclohexylacetic acid is a tyrosine metabolite that has been found in the urine of a patient ... oxidation step, followed by a rearrangement step to form homogentisic acid (Tomoeda et al., 2000). ... by catalyzing the conversion of 4-hydroxyphenylpyruvate to homogentisate (Hager et al., 1957). …
FDB019430
87304-79-8
(2S)-3-methyl-2-({[(3S,4S,5R)-2,3,4-trihydroxy-5-(hydroxymethyl)oxolan-2-yl]methyl}amino)pentanoic acid
Matched synonyms: … 1-[(1-Carboxy-2-methylbutyl)amino]-1-deoxyfructose …
Matched iupac: … (2S)-3-methyl-2-({[(3S,4S,5R)-2,3,4-trihydroxy-5-(hydroxymethyl)oxolan-2-yl]methyl}amino)pentanoic acid …
Matched iupac: … (2S)-3-methyl-2-({[(3S,4S,5R)-2,3,4-trihydroxy-5-(hydroxymethyl)oxolan-2-yl]methyl}amino)pentanoic acid …
FDB000749
150-38-9
trisodium 2-({2-[bis(carboxylatomethyl)amino]ethyl}(carboxymethyl)amino)acetate
Matched synonyms: … Ethylenediamineacetic acid trisodium salt ... (Ethylenedinitrilo)tetraacetic acid trisodium salt ... Ethylenediaminetetraacetic acid trisodium salt …
Matched iupac: … trisodium 2-({2-[bis(carboxylatomethyl)amino]ethyl}(carboxymethyl)amino)acetate …
Matched description: … acid and a colourless, water-soluble solid. ... Preservative Ethylenediaminetetraacetic acid, widely abbreviated as EDTA, is a polyamino carboxylic …
Matched iupac: … trisodium 2-({2-[bis(carboxylatomethyl)amino]ethyl}(carboxymethyl)amino)acetate …
Matched description: … acid and a colourless, water-soluble solid. ... Preservative Ethylenediaminetetraacetic acid, widely abbreviated as EDTA, is a polyamino carboxylic …
FDB023810
2888-19-9
2-{1-[(3R,4S,5R)-3,4-dihydroxy-5-[(phosphonooxy)methyl]oxolan-2-yl]-1H-imidazol-4-yl}acetic acid
Matched synonyms: … [1-(5-Oribosyl)imidazol-4-yl]acetic acid ... Imidazole-4-acetic acid ribotide ... [1-(5-Oribofuranosyl)imidazol-4-yl]acetic acid …
Matched name: … Imidazoleacetic acid ribotide …
Matched iupac: … 2-{1-[(3R,4S,5R)-3,4-dihydroxy-5-[(phosphonooxy)methyl]oxolan-2-yl]-1H-imidazol-4-yl}acetic acid …
Matched description: … Imidazoleacetic acid ribotide (IAA-RP ) is an endogenous ligand that stimulates imidazol(in)e receptors …
Matched name: … Imidazoleacetic acid ribotide …
Matched iupac: … 2-{1-[(3R,4S,5R)-3,4-dihydroxy-5-[(phosphonooxy)methyl]oxolan-2-yl]-1H-imidazol-4-yl}acetic acid …
Matched description: … Imidazoleacetic acid ribotide (IAA-RP ) is an endogenous ligand that stimulates imidazol(in)e receptors …
6-amino-2-[(2,6-diamino-1-hydroxyhexylidene)amino]hexanoic acid
Matched iupac: … 6-amino-2-[(2,6-diamino-1-hydroxyhexylidene)amino]hexanoic acid …
FDB029335
16305-75-2
(2S)-2-[(2S)-2-aminopropanamido]-3-(1H-indol-2-yl)propanoic acid
Matched iupac: … (2S)-2-[(2S)-2-aminopropanamido]-3-(1H-indol-2-yl)propanoic acid …
Matched description: … Tryptophan is an essential amino acid which is the precursor of serotonin. [HMDB] …
Matched description: … Tryptophan is an essential amino acid which is the precursor of serotonin. [HMDB] …
(2S,3S,4R,5R)-2,4,5-trihydroxy-3-methoxy-6-oxohexanoic acid
Matched name: … 4-O-Methylglucuronic acid …
Matched iupac: … (2S,3S,4R,5R)-2,4,5-trihydroxy-3-methoxy-6-oxohexanoic acid …
Matched description: … 4-o-methylglucuronic acid belongs to glucuronic acid derivatives class of compounds. ... moiety with the C6 carbon oxidized to a carboxylic acid. 4-o-methylglucuronic acid is soluble (in water ... ) and a weakly acidic compound (based on its pKa). 4-o-methylglucuronic acid can be found in cashew nut …
Matched iupac: … (2S,3S,4R,5R)-2,4,5-trihydroxy-3-methoxy-6-oxohexanoic acid …
Matched description: … 4-o-methylglucuronic acid belongs to glucuronic acid derivatives class of compounds. ... moiety with the C6 carbon oxidized to a carboxylic acid. 4-o-methylglucuronic acid is soluble (in water ... ) and a weakly acidic compound (based on its pKa). 4-o-methylglucuronic acid can be found in cashew nut …
FDB018457
104653-91-0
4-(5-amino-2,2-dimethyl-4-oxo-3,4-dihydro-2H-1-benzopyran-6-yl)-2-acetamido-4-oxobutyl acetate
Matched synonyms: … 2,2-Dimethyl-5-amino-6-(3'-N-acetyl-4'-O-acetylbutyryl)-4-chromone …
Matched iupac: … 4-(5-amino-2,2-dimethyl-4-oxo-3,4-dihydro-2H-1-benzopyran-6-yl)-2-acetamido-4-oxobutyl acetate …
Matched iupac: … 4-(5-amino-2,2-dimethyl-4-oxo-3,4-dihydro-2H-1-benzopyran-6-yl)-2-acetamido-4-oxobutyl acetate …
FDB029226
71447-49-9
4-amino-4-[(1-{[(1S)-1-{[(1S)-1-{[(1S)-1-[({[(1S)-1-{[(2R)-5-carbamimidamido-1-[(2R)-2-[(carbamoylmethyl)carbamoyl]pyrrolidin-1-yl]-1-oxopentan-2-yl]carbamoyl}-3-methylbutyl]carbamoyl}methyl)carbamoyl]-2-(4-hydroxyphenyl)ethyl]carbamoyl}-2-hydroxyethyl]carbamoyl}-2-(1H-indol-3-yl)ethyl]carbamoyl}-2-(1H-imidazol-5-yl)ethyl)carbamoyl]butanoic acid
Matched iupac: … -5-yl)ethyl)carbamoyl]butanoic acid ... 4-amino-4-[(1-{[(1S)-1-{[(1S)-1-{[(1S)-1-[({[(1S)-1-{[(2R)-5-carbamimidamido-1-[(2R)-2-[(carbamoylmethyl ... 4-hydroxyphenyl)ethyl]carbamoyl}-2-hydroxyethyl]carbamoyl}-2-(1H-indol-3-yl)ethyl]carbamoyl}-2-(1H-imidazol ... )carbamoyl]pyrrolidin-1-yl]-1-oxopentan-2-yl]carbamoyl}-3-methylbutyl]carbamoyl}methyl)carbamoyl]-2-( …
FDB011872
506-32-1
(5Z,8Z,11Z,14Z)-icosa-5,8,11,14-tetraenoic acid
Matched synonyms: … Arachidonic acid ... (5Z,8Z,11Z,14Z)-Icosatetraenoic acid ... 5Z,8Z,11Z,14Z-Eicosatetraenoic acid …
Matched name: … Arachidonic acid …
Matched iupac: … (5Z,8Z,11Z,14Z)-icosa-5,8,11,14-tetraenoic acid …
Matched description: … omega-6 fatty acid 20:4(omega-6). ... Essential fatty acid. ... Constituent of many animal phospholipids Arachidonic acid (AA, sometimes ARA) is a polyunsaturated …
Matched name: … Arachidonic acid …
Matched iupac: … (5Z,8Z,11Z,14Z)-icosa-5,8,11,14-tetraenoic acid …
Matched description: … omega-6 fatty acid 20:4(omega-6). ... Essential fatty acid. ... Constituent of many animal phospholipids Arachidonic acid (AA, sometimes ARA) is a polyunsaturated …
FDB017466
142540-01-0
4-[(E)-{[4-(octyloxy)phenyl]methylidene}amino]benzonitrile
Matched synonyms: … 4-(((E)-[4-(Octyloxy)phenyl]methylidene)amino)benzonitrile …
Matched iupac: … 4-[(E)-{[4-(octyloxy)phenyl]methylidene}amino]benzonitrile …
Matched iupac: … 4-[(E)-{[4-(octyloxy)phenyl]methylidene}amino]benzonitrile …
FDB017972
130767-47-4
5-amino-6-(3-hydroxy-4-methoxybutanoyl)-2,2-dimethyl-3,4-dihydro-2H-1-benzopyran-4-one
Matched synonyms: … 5-Amino-2,3-dihydro-6-(3-hydroxy-4-methoxybutanoyl)-2,2-dimethyl-4H-4-chromanone …
Matched name: … 5-Amino-2,3-dihydro-6-(3-hydroxy-4-methoxy-1-oxobutyl)-2,2-dimethyl-4H-1-benzopyran-4-one …
Matched iupac: … 5-amino-6-(3-hydroxy-4-methoxybutanoyl)-2,2-dimethyl-3,4-dihydro-2H-1-benzopyran-4-one …
Matched name: … 5-Amino-2,3-dihydro-6-(3-hydroxy-4-methoxy-1-oxobutyl)-2,2-dimethyl-4H-1-benzopyran-4-one …
Matched iupac: … 5-amino-6-(3-hydroxy-4-methoxybutanoyl)-2,2-dimethyl-3,4-dihydro-2H-1-benzopyran-4-one …