CAS: 4326-36-7 Molecular Formula: C15H21NO5 Molecular Weight (g/mol): 295.34 MDL Number: MFCD00191181 InChI Key: NQIFXJSLCUJHBB-STGVRZAANA-N Synonym: s-2-tert-butoxycarbonylamino-3-4-hydroxy-phenyl-propionic acid methyl ester, s-methyl 2-tert-butoxycarbonyl amino-3-4-hydroxyphenyl propanoate, methyl 2s-2-tert-butoxy carbonyl amino-3-4-hydroxyphenyl propanoate, methyl 2s-2-tert-butoxycarbonyl amino-3-4-hydroxyphenyl propanoate, methyl n-boc-l-tyrosinate, n-tert-butoxycarbonyl-l-tyrosine methyl ester, n-boc-l-tyrosine methyl ester, boc-l-tyrosine methyl ester, boc-tyr-ome PubChem CID: 7019130 SMILES: COC(=O)[C@H](CC1=CC=C(O)C=C1)NC(=O)OC(C)(C)C

CAS: 60-18-4 Molecular Formula: C9H11NO3 Molecular Weight (g/mol): 181.19 MDL Number: MFCD00002606 InChI Key: OUYCCCASQSFEME-SVGMAFHSNA-N Synonym: tyrosine, l, l---tyrosine, 4-hydroxy-l-phenylalanine, 2s-2-amino-3-4-hydroxyphenyl propanoic acid, l-p-tyrosine, h-tyr-oh, p-tyrosine, s-tyrosine, tyrosine, l-tyrosine PubChem CID: 6057 ChEBI: CHEBI:17895 SMILES: N[C@@H](CC1=CC=C(O)C=C1)C(O)=O

CAS: 60-18-4 Molecular Formula: C9H11NO3 Molecular Weight (g/mol): 181.19 MDL Number: MFCD00002606 InChI Key: OUYCCCASQSFEME-SVGMAFHSNA-N Synonym: tyrosine, l, l---tyrosine, 4-hydroxy-l-phenylalanine, 2s-2-amino-3-4-hydroxyphenyl propanoic acid, l-p-tyrosine, h-tyr-oh, p-tyrosine, s-tyrosine, tyrosine, l-tyrosine PubChem CID: 6057 ChEBI: CHEBI:17895 SMILES: N[C@@H](CC1=CC=C(O)C=C1)C(O)=O

CAS: 59-92-7 Molecular Formula: C9H11NO4 Molecular Weight (g/mol): 197.19 MDL Number: MFCD00002598 InChI Key: WTDRDQBEARUVNC-LURJTMIESA-N Synonym: cidandopa, dihydroxy-l-phenylalanine, levopa, bendopa, larodopa, 3,4-dihydroxy-l-phenylalanine, 3-hydroxy-l-tyrosine, dopar, l-dopa, levodopa PubChem CID: 6047 ChEBI: CHEBI:15765 IUPAC Name: (2S)-2-amino-3-(3,4-dihydroxyphenyl)propanoic acid SMILES: N[C@@H](CC1=CC=C(O)C(O)=C1)C(O)=O

CAS: 3978-80-1 Molecular Formula: C14H19NO5 Molecular Weight (g/mol): 281.31 MDL Number: MFCD00037179 InChI Key: CNBUSIJNWNXLQQ-LDGXTIHJNA-N Synonym: n-tert-butoxycarbonyl tyrosine, n-t-butoxycarbonyl-l-tyrosine, chembl65386, l-tyrosine, n-1,1-dimethylethoxy carbonyl, n-t-boc-l-tyrosine, n-boc-tyrosine, n-tert-butoxycarbonyl-l-tyrosine, n-boc-l-tyrosine, boc-l-tyrosine, boc-tyr-oh PubChem CID: 117439 SMILES: CC(C)(C)OC(=O)N[C@@H](CC1=CC=C(O)C=C1)C(O)=O

CAS: 7423-96-3 Molecular Formula: C9H10FNO3 Molecular Weight (g/mol): 199.18 MDL Number: MFCD00002607 InChI Key: VIIAUOZUUGXERI-JLDDOWRYNA-N Synonym: 3-fluoro-tyrosine, 2s-2-amino-3-3-fluoro-4-hydroxyphenyl propanoic acid, 3'-fluoro-l-tyrosine, s-3-fluorotyrosine, unii-174nrg3m2x, h-tyr 3-f-oh, 3-fluorotyrosine, l, 3-fluorotyrosine, s-2-amino-3-3-fluoro-4-hydroxyphenyl propanoic acid, 3-fluoro-l-tyrosine PubChem CID: 643330 ChEBI: CHEBI:46534 IUPAC Name: (2S)-2-amino-3-(3-fluoro-4-hydroxyphenyl)propanoic acid SMILES: N[C@@H](CC1=CC=C(O)C(F)=C1)C(O)=O

CAS: 3728-20-9 Molecular Formula: C10H14ClNO3 Molecular Weight (g/mol): 231.68 MDL Number: MFCD00066124 InChI Key: VXYFARNRGZWHTJ-MVRPGTNWNA-N Synonym: h-d-tyr-omehcl, tyrosine methylester hydrochloride, methyl d-tyrosinate hcl, methyl 2r-2-amino-3-4-hydroxyphenyl propanoate hydrochloride, d-tyrosine, methyl ester, hydrochloride, r-methyl 2-amino-3-4-hydroxyphenyl propanoate hydrochloride, methyl d-tyrosinate hydrochloride, h-d-tyr-ome hcl, d-tyrosine methyl ester hydrochloride, h-d-tyr-ome.hcl PubChem CID: 134565 IUPAC Name: methyl (2R)-2-amino-3-(4-hydroxyphenyl)propanoate;hydrochloride SMILES: Cl.COC(=O)[C@H](N)CC1=CC=C(O)C=C1

CAS: 87553-74-0 Molecular Formula: C13H19NO3 Molecular Weight (g/mol): 237.30 MDL Number: MFCD00191035 InChI Key: DIGHFXIWRPMGSA-LDGXTIHJNA-N Synonym: r-2-amino-3-4-hydroxy-phenyl-propionic acid tert-butyl ester, r-tert-butyl 2-amino-3-4-hydroxyphenyl propanoate, d-tyrosine-t-butylester, d-tyrosine tert.butyl ester, d-tyrosine tert-butyl ester, d-tyrosine,1,1-dimethylethyl ester, tert-butyl 2r-2-amino-3-4-hydroxyphenyl propanoate, h-d-tyr-otbu PubChem CID: 7408333 IUPAC Name: tert-butyl (2R)-2-amino-3-(4-hydroxyphenyl)propanoate SMILES: CC(C)(C)OC(=O)[C@H](N)CC1=CC=C(O)C=C1

CAS: 621-44-3 Molecular Formula: C9H10N2O5 Molecular Weight (g/mol): 226.19 MDL Number: MFCD00007123 InChI Key: FBTSQILOGYXGMD-MDOHGIEYNA-N Synonym: 3-mononitrotyrosine, tyrosine, 3-nitro-, l, unii-7coy1ha6hk, meta-nitro-tyrosine, l-tyrosine, 3-nitro, tyrosine, 3-nitro, l-3-nitrotyrosine, h-tyr 3-no2-oh, 3-nitrotyrosine, 3-nitro-l-tyrosine PubChem CID: 65124 ChEBI: CHEBI:44454 IUPAC Name: (2S)-2-amino-3-(4-hydroxy-3-nitrophenyl)propanoic acid SMILES: N[C@@H](CC1=CC=C(O)C(=C1)[N+]([O-])=O)C(O)=O

CAS: 537-55-3 Molecular Formula: C11H13NO4 Molecular Weight (g/mol): 223.23 MDL Number: MFCD00037190 InChI Key: CAHKINHBCWCHCF-UEQNJFAPNA-N Synonym: unii-da8g610zo5, l-tyrosine, n-acetyl, tyrosine, n-acetyl, l-n-acetyltyrosine, acetyl tyrosine, n-acetyltyrosine, n-acetyl-tyrosine, acetyl-l-tyrosine, ac-tyr-oh, n-acetyl-l-tyrosine PubChem CID: 68310 ChEBI: CHEBI:21563 IUPAC Name: (2S)-2-acetamido-3-(4-hydroxyphenyl)propanoic acid SMILES: CC(=O)N[C@@H](CC1=CC=C(O)C=C1)C(O)=O

CAS: 556-03-6 Molecular Formula: C9H11NO3 Molecular Weight (g/mol): 181.19 MDL Number: MFCD00063074 InChI Key: OUYCCCASQSFEME-UHFFFAOYNA-N Synonym: benzenepropanoic acid, s, 3-4-hydroxyphenyl-dl-alanine, l-tryosine, tirosina, l-tyrosine, free base, tyrosine, dl, tyrosin, 2-amino-3-4-hydroxyphenyl propanoic acid, h-dl-tyr-oh, dl-tyrosine PubChem CID: 1153 ChEBI: CHEBI:18186 IUPAC Name: 2-amino-3-(4-hydroxyphenyl)propanoic acid SMILES: NC(CC1=CC=C(O)C=C1)C(O)=O

CAS: 1421-65-4 Molecular Formula: C10H14ClNO4 Molecular Weight (g/mol): 247.68 InChI Key: WFGNJLMSYIJWII-UHFFFAOYNA-N Synonym: dsstox_rid_81105, dsstox_cid_25763, l-tyrosine, 3-hydroxy-, methyl ester, hydrochloride, levodopa methyl ester hydrochloride, l-dopa methyl ester hydrochloride, unii-jfu1a8866v, melevodopa hydrochloride, methyl l-dopa hydrochloride, l-3,4-dihydroxyphenylalanine methyl ester hydrochloride, s-methyl 2-amino-3-3,4-dihydroxyphenyl propanoate hydrochloride PubChem CID: 10131132 SMILES: [H+].[Cl-].COC(=O)C(N)CC1=CC=C(O)C(O)=C1

CAS: 556-02-5 Molecular Formula: C9H11NO3 Molecular Weight (g/mol): 181.19 MDL Number: MFCD00063073 InChI Key: OUYCCCASQSFEME-SVGMAFHSNA-N Synonym: d-+-tyrosine, tyrosine, d, d-p-tyrosine, 3-4-hydroxyphenyl-d-alanine, 2r-2-amino-3-4-hydroxyphenyl propanoic acid, d-tyrosin, r-2-amino-3-4-hydroxyphenyl propanoic acid, d-tyr, h-d-tyr-oh, d-tyrosine PubChem CID: 71098 ChEBI: CHEBI:28479 IUPAC Name: (2R)-2-amino-3-(4-hydroxyphenyl)propanoic acid SMILES: N[C@H](CC1=CC=C(O)C=C1)C(O)=O

CAS: 556-02-5 Molecular Formula: C9H11NO3 Molecular Weight (g/mol): 181.19 MDL Number: MFCD00063073 InChI Key: OUYCCCASQSFEME-SVGMAFHSNA-N Synonym: d-+-tyrosine, tyrosine, d, d-p-tyrosine, 3-4-hydroxyphenyl-d-alanine, 2r-2-amino-3-4-hydroxyphenyl propanoic acid, d-tyrosin, r-2-amino-3-4-hydroxyphenyl propanoic acid, d-tyr, h-d-tyr-oh, d-tyrosine PubChem CID: 71098 ChEBI: CHEBI:28479 IUPAC Name: (2R)-2-amino-3-(4-hydroxyphenyl)propanoic acid SMILES: N[C@H](CC1=CC=C(O)C=C1)C(O)=O

CAS: 70-78-0 Molecular Formula: C9H10INO3 Molecular Weight (g/mol): 307.09 MDL Number: MFCD00002608 InChI Key: UQTZMGFTRHFAAM-JLDDOWRYNA-N Synonym: 3-iodo-4-hydroxyphenylalanine, 3-iodotyrosine, s-2-amino-3-4-hydroxy-3-iodophenyl propanoic acid, l-tyrosine, 3-iodo, 3-monoiodo-l-tyrosine, iodotyrosine, monoiodotyrosine, 3-iodo-tyrosine, h-tyr 3-i-oh, 3-iodo-l-tyrosine PubChem CID: 439744 ChEBI: CHEBI:27847 IUPAC Name: (2S)-2-amino-3-(4-hydroxy-3-iodophenyl)propanoic acid SMILES: N[C@@H](CC1=CC=C(O)C(I)=C1)C(O)=O

CAS: 3978-80-1 Molecular Formula: C14H19NO5 Molecular Weight (g/mol): 281.31 MDL Number: MFCD00037179 InChI Key: CNBUSIJNWNXLQQ-LDGXTIHJNA-N Synonym: n-tert-butoxycarbonyl tyrosine, n-t-butoxycarbonyl-l-tyrosine, chembl65386, l-tyrosine, n-1,1-dimethylethoxy carbonyl, n-t-boc-l-tyrosine, n-boc-tyrosine, n-tert-butoxycarbonyl-l-tyrosine, n-boc-l-tyrosine, boc-l-tyrosine, boc-tyr-oh PubChem CID: 117439 IUPAC Name: (2S)-3-(4-hydroxyphenyl)-2-[(2-methylpropan-2-yl)oxycarbonylamino]propanoic acid SMILES: CC(C)(C)OC(=O)N[C@@H](CC1=CC=C(O)C=C1)C(O)=O

CAS: 36546-50-6 Molecular Formula: C13H19NO5 Molecular Weight (g/mol): 269.30 MDL Number: MFCD00149093 InChI Key: YWAVLHZJMWEYTA-HVPILOLGNA-N Synonym: acetyl-l-tyrosine ethyl ester hydrate, n-acetyl tyrosine ethyl ester mono hydrate, ksc491m4n, n-acetyltyrosine ethyl ester monohydrate, n-acetyl-l-tyrosineethylestermonohydrate, ethyl 2s-2-acetamido-3-4-hydroxyphenyl propanoate hydrate, atee, ac-tyr-oet.h2o, ethyl n-acetyl-l-tyrosinate hydrate, n-acetyl-l-tyrosine ethyl ester monohydrate PubChem CID: 2723594 IUPAC Name: ethyl (2S)-2-acetamido-3-(4-hydroxyphenyl)propanoate;hydrate SMILES: O.CCOC(=O)[C@H](CC1=CC=C(O)C=C1)NC(C)=O

CAS: 3417-91-2 Molecular Formula: C10H14ClNO3 Molecular Weight (g/mol): 231.68 MDL Number: MFCD00012607 InChI Key: VXYFARNRGZWHTJ-MVRPGTNWNA-N Synonym: s-2-amino-3-4-hydroxy-phenyl-propionic acid methyl ester hydrochloride, s-methyl 2-amino-3-4-hydroxyphenyl propanoate hydrochloride, methyl l-tyrosinate hcl, tyrosine methyl ester hydrochloride, unii-w42m0mi271, methyl tyrosinate hydrochloride, h-tyr-ome hcl, methyl l-tyrosinate hydrochloride, h-tyr-ome.hcl, l-tyrosine methyl ester hydrochloride PubChem CID: 76956 IUPAC Name: methyl (2S)-2-amino-3-(4-hydroxyphenyl)propanoate;hydrochloride SMILES: Cl.COC(=O)[C@@H](N)CC1=CC=C(O)C=C1

CAS: 13512-31-7 Molecular Formula: C18H19NO5 Molecular Weight (g/mol): 329.35 MDL Number: MFCD00038784 InChI Key: SLLMDHBKALJDBW-XISACWJONA-N Synonym: n-benzyloxycarbonyltyrosine methyl ester, n-cbz-l-tyrosinemethylester, cbz-tyrosine methyl ester, z-tyr-och3, z-l-tyr-ome, cbz-tyr-ome, s-methyl 2-benzyloxy carbonyl amino-3-4-hydroxyphenyl propanoate, n-cbz-l-tyrosine methyl ester, z-l-tyrosine methyl ester, z-tyr-ome PubChem CID: 7010613 SMILES: COC(=O)[C@H](CC1=CC=C(O)C=C1)NC(=O)OCC1=CC=CC=C1

CAS: 3483-82-7 Molecular Formula: C18H19NO4 Molecular Weight (g/mol): 313.35 MDL Number: MFCD00002388 InChI Key: SRLROPAFMUDDRC-XISACWJONA-N Synonym: l-tyrosine, n-benzoyl-, ethyl ester, benzoyl-tyr-oet, s-ethyl 2-benzamido-3-4-hydroxyphenyl propanoate, benzoyl-l-tyrosine ethyl ester, benzoyltyrosine ethyl ester, ethyl benzoyltyrosinate, btee, ethyl n-benzoyl-l-tyrosinate, bz-tyr-oet, n-benzoyl-l-tyrosine ethyl ester PubChem CID: 77033 IUPAC Name: ethyl (2S)-2-benzamido-3-(4-hydroxyphenyl)propanoate SMILES: CCOC(=O)[C@H](CC1=CC=C(O)C=C1)NC(=O)C1=CC=CC=C1

CAS: 18835-59-1 Molecular Formula: C9H13I2NO5 Molecular Weight (g/mol): 469.01 MDL Number: MFCD00150275 InChI Key: YWAGQOOMOOUEGY-QVGJJETENA-N Synonym: s-2-amino-3-4-hydroxy-3,5-diiodophenyl-propanoic acid dihydrate, 2s-2-amino-3-4-hydroxy-3,5-diiodophenyl propanoic acid dihydrate, s-2-amino-3-4-hydroxy-3,5-diiodophenyl propanoicaciddihydrate, l-tyrosine,3,5-diiodo-, hydrate 1:2, 3,5-diiodo-l-tyrosine hydrate, c9h9i2no3.2h2o, 3,5-dijodtyrosindihydrat, 3,5-diiodotyrosine dihydrate, s-2-amino-3-4-hydroxy-3,5-diiodophenyl propanoic acid dihydrate, 3,5-diiodo-l-tyrosine dihydrate PubChem CID: 2724330 IUPAC Name: (2S)-2-amino-3-(4-hydroxy-3,5-diiodophenyl)propanoic acid;dihydrate SMILES: O.O.N[C@@H](CC1=CC(I)=C(O)C(I)=C1)C(O)=O

CAS: 63-84-3 Molecular Formula: C9H11NO4 Molecular Weight (g/mol): 197.19 MDL Number: MFCD00063060 InChI Key: WTDRDQBEARUVNC-UHFFFAOYNA-N Synonym: dl-3,4-dopa, dopa, 3-hydroxy-dl-tyrosine, 3-hydroxytyrosine, 3-3,4-dihydroxyphenyl-dl-alanine, dl-dihydroxyphenylalanine, dl-dioxyphenylalanine, 2-amino-3-3,4-dihydroxyphenyl propanoic acid, 3,4-dihydroxy-dl-phenylalanine, dl-dopa PubChem CID: 836 ChEBI: CHEBI:49168 IUPAC Name: 2-amino-3-(3,4-dihydroxyphenyl)propanoic acid SMILES: NC(CC1=CC=C(O)C(O)=C1)C(O)=O

CAS: 4089-07-0 Molecular Formula: C11H16ClNO3 Molecular Weight (g/mol): 245.70 MDL Number: MFCD00063047 InChI Key: BQULAXAVRFIAHN-OXZMBGLCNA-N Synonym: l-tyrosine, ethyl ester hydrochloride, tyrosine, ethyl ester, hydrochloride, fap58daz1e, tyrosine ethyl ester hydrochloride, h-tyr-oet hcl, s-ethyl 2-amino-3-4-hydroxyphenyl propanoate hydrochloride, unii-fap58daz1e, ethyl l-tyrosinate hydrochloride, h-tyr-oet.hcl, l-tyrosine ethyl ester hydrochloride PubChem CID: 2724939 IUPAC Name: ethyl (2S)-2-amino-3-(4-hydroxyphenyl)propanoate;hydrochloride SMILES: Cl.CCOC(=O)[C@@H](N)CC1=CC=C(O)C=C1

CAS: 112883-29-1 Molecular Formula: C24H21NO5 Molecular Weight (g/mol): 403.43 MDL Number: MFCD00171384 InChI Key: SWZCTMTWRHEBIN-ANBDAQEENA-N Synonym: r-2-9h-fluoren-9-ylmethoxycarbonylamino-3-4-hydroxy-phenyl-propionic acid, n-alpha-9-fluorenylmethoxycarbonyl-d-tyrosine, n-9h-fluorene-9-ylmethoxycarbonyl-d-tyrosine, fmoc-d-phe 4-oh-oh, n-fmoc-d-tyr oh, 2r-2-9h-fluoren-9-ylmethoxy carbonyl amino-3-4-hydroxyphenyl propanoic acid, r-2-9h-fluoren-9-yl methoxy carbonyl amino-3-4-hydroxyphenyl propanoic acid, fmoc-d-tyr-oh, fmoc-d-tyrosine PubChem CID: 6957988 IUPAC Name: (2R)-2-(9H-fluoren-9-ylmethoxycarbonylamino)-3-(4-hydroxyphenyl)propanoic acid SMILES: OC(=O)[C@@H](CC1=CC=C(O)C=C1)NC(=O)OCC1C2=C(C=CC=C2)C2=C1C=CC=C2

CAS: 17360-11-1 Molecular Formula: C9H9N3O7 Molecular Weight (g/mol): 271.19 MDL Number: MFCD00038093 InChI Key: SAZOSDSFLRXREA-MLHKIVSYNA-N Synonym: 3,5-dinitro-4-hydroxy-l-phenylalanine, sazosdsflrxrea-yfkpbyrvsa, l-tyrosine,3,5-dinitro, 2s-2-amino-3-4-hydroxy-3,5-dinitrophenyl propanoic acid, tyrosine, 3,5-dinitro, h-tyr 3,5-no2 2-oh, s-2-amino-3-4-hydroxy-3,5-dinitrophenyl propanoic acid, 3,5-dinitro-tyr-oh, 3,5-dinitrotyrosine, 3,5-dinitro-l-tyrosine PubChem CID: 439948 ChEBI: CHEBI:28275 IUPAC Name: (2S)-2-amino-3-(4-hydroxy-3,5-dinitrophenyl)propanoic acid SMILES: N[C@@H](CC1=CC(=C(O)C(=C1)[N+]([O-])=O)[N+]([O-])=O)C(O)=O

CAS: 70-78-0 Molecular Formula: C9H10INO3 Molecular Weight (g/mol): 307.09 MDL Number: MFCD00002608 InChI Key: UQTZMGFTRHFAAM-JLDDOWRYNA-N Synonym: 3-iodo-4-hydroxyphenylalanine, 3-iodotyrosine, s-2-amino-3-4-hydroxy-3-iodophenyl propanoic acid, l-tyrosine, 3-iodo, 3-monoiodo-l-tyrosine, iodotyrosine, monoiodotyrosine, 3-iodo-tyrosine, h-tyr 3-i-oh, 3-iodo-l-tyrosine PubChem CID: 439744 ChEBI: CHEBI:27847 IUPAC Name: (2S)-2-amino-3-(4-hydroxy-3-iodophenyl)propanoic acid SMILES: N[C@@H](CC1=CC=C(O)C(I)=C1)C(O)=O

CAS: 4326-36-7 Molecular Formula: C15H21NO5 Molecular Weight (g/mol): 295.34 MDL Number: MFCD00191181 InChI Key: NQIFXJSLCUJHBB-STGVRZAANA-N Synonym: s-2-tert-butoxycarbonylamino-3-4-hydroxy-phenyl-propionic acid methyl ester, s-methyl 2-tert-butoxycarbonyl amino-3-4-hydroxyphenyl propanoate, methyl 2s-2-tert-butoxy carbonyl amino-3-4-hydroxyphenyl propanoate, methyl 2s-2-tert-butoxycarbonyl amino-3-4-hydroxyphenyl propanoate, methyl n-boc-l-tyrosinate, n-tert-butoxycarbonyl-l-tyrosine methyl ester, n-boc-l-tyrosine methyl ester, boc-l-tyrosine methyl ester, boc-tyr-ome PubChem CID: 7019130 IUPAC Name: methyl (2S)-3-(4-hydroxyphenyl)-2-[(2-methylpropan-2-yl)oxycarbonylamino]propanoate SMILES: COC(=O)[C@H](CC1=CC=C(O)C=C1)NC(=O)OC(C)(C)C

CAS: 1164-16-5 Molecular Formula: C17H17NO5 Molecular Weight (g/mol): 315.33 MDL Number: MFCD00037180 InChI Key: MCRMUCXATQAAMN-GGYSOQFKNA-N Synonym: z-tyrosine, n-cbz-l-tyrosine-oh, benzyloxycarbonyl-l-tyrosine, cbz-tyr-oh, n-carbobenzyloxy-l-tyrosine, n-carbobenzoxy-l-tyrosine, cbz-l-tyrosine, n-benzyloxycarbonyl-l-tyrosine, n-cbz-l-tyrosine, z-tyr-oh PubChem CID: 712438 SMILES: OC(=O)[C@H](CC1=CC=C(O)C=C1)NC(=O)OCC1=CC=CC=C1