(3S)-3-[[(2S)-2-[[(2S)-2-[[(1S,4S,7S,10R,13S,16R,19S,22R,25R,28R,31S,36R,39S,42R,45S)-31-amino-7-(4-aminobutyl)-39-benzyl-4-(2-carboxyethyl)-10-(carboxymethyl)-19,22,28-tris(hydroxymethyl)-42-[(4-hydroxyphenyl)methyl]-16-(2-methylpropyl)-13-(2-methylsulfanylethyl)-3,6,9,12,15,18,21,24,27,30,38,41,44,47-tetradecaoxo-45-propan-2-yl-33,34,49,50-tetrathia-2,5,8,11,14,17,20,23,26,29,37,40,43,46-tetradecazabicyclo[23.22.4]henpentacontane-36-carbonyl]amino]-3-(1H-imidazol-4-yl)propanoyl]amino]-4-methylpentanoyl]amino]-4-[[(2S,3S)-1-[[(2S,3S)-1-[[(1S)-1-carboxy-2-(1H-indol-3-yl)ethyl]amino]-3-methyl-1-oxopentan-2-yl]amino]-3-methyl-1-oxopentan-2-yl]amino]-4-oxobutanoic acid

3-Benzo[1,3]dioxol-5-yl-1-benzo[1,3]dioxol-5-ylmethyl-6-benzyloxy-5-methoxy-1H-indole-2-carboxylic acid

Sodium salt (Z)-2-(7-methoxy-benzo[1,3]dioxol-5-yl)-4-(4-methoxy-3-methyl-phenyl)-4-oxo-3-(2,3,4-trimethoxy-benzyl)-but-2-enoate

3-(benzo[d][1,3]dioxol-5-yl)-5-hydroxy-5-(4-methoxyphenyl)-4-(3,4,5-trimethoxybenzyl)furan-2(5H)-one

Sodium salt (Z)-2-benzo[1,3]dioxol-5-yl-4-(4-methoxy-phenyl)-4-oxo-3-(2,3,4-trimethoxy-benzyl)-but-2-enoate

5-Benzo[1,3]dioxol-5-ylmethyl-7-(3,4-dimethoxy-phenylsulfanyl)-5H-[1,3]dioxolo[4,5-f]indole-6-carboxylic acid

5-Hydroxy-3-(7-methoxy-benzo[1,3]dioxol-5-yl)-5-(4-methoxy-3-methyl-phenyl)-4-(3,4,5-trimethoxy-benzyl)-5H-furan-2-one

3-Benzo[1,3]dioxol-5-yl-4-cyclohexylmethyl-5-hydroxy-5-(4-methoxy-phenyl)-5H-furan-2-one

5-Benzo[1,3]dioxol-5-ylmethyl-7-(3,4,5-trimethoxy-phenylsulfanyl)-5H-[1,3]dioxolo[4,5-f]indole-6-carboxylic acid

3-Benzo[1,3]dioxol-5-yl-5-hydroxy-5-(4-methoxy-3-methyl-phenyl)-4-(3,4,5-trimethoxy-benzyl)-5H-furan-2-one

3-Benzo[1,3]dioxol-5-yl-5-hydroxy-4-(3-methoxy-benzyl)-5-(4-methoxy-phenyl)-5H-furan-2-one

5-Hydroxy-3-(7-methoxy-benzo[1,3]dioxol-5-yl)-5-(4-methoxy-phenyl)-4-(3,4,5-trimethoxy-benzyl)-5H-furan-2-one

1-Benzo[1,3]dioxol-5-ylmethyl-3-(benzo[1,3]dioxol-5-ylsulfanyl)-5,6-dimethoxy-1H-indole-2-carboxylic acid

1-Benzo[1,3]dioxol-5-ylmethyl-5,6-dimethoxy-3-(3,4,5-trimethoxy-phenylsulfanyl)-1H-indole-2-carboxylic acid

7-(3,4-Dimethoxy-phenylsulfanyl)-5-(7-methoxy-benzo[1,3]dioxol-5-ylmethyl)-5H-[1,3]dioxolo[4,5-f]indole-6-carboxylic acid

5-Benzo[1,3]dioxol-5-ylmethyl-7-(benzo[1,3]dioxol-5-ylsulfanyl)-5H-[1,3]dioxolo[4,5-f]indole-6-carboxylic acid

3-Benzo[1,3]dioxol-5-yl-5-hydroxy-5-(4-methoxy-phenyl)-4-(3,4,5-triethoxy-benzyl)-5H-furan-2-one

1-Benzo[1,3]dioxol-5-ylmethyl-3-(benzo[1,3]dioxol-5-ylsulfanyl)-6-benzyloxy-5-methoxy-1H-indole-2-carboxylic acid

3-Benzo[1,3]dioxol-5-yl-4-cyclopentylmethyl-5-hydroxy-5-(4-methoxy-phenyl)-5H-furan-2-one

4-Benzyl-5-hydroxy-3-(7-methoxy-benzo[1,3]dioxol-5-yl)-5-(4-methoxy-phenyl)-5H-furan-2-one

7-Benzo[1,3]dioxol-5-yl-5-benzo[1,3]dioxol-5-ylmethyl-5H-[1,3]dioxolo[4,5-f]indole-6-carboxylic acid

1-Benzo[1,3]dioxol-5-ylmethyl-5-benzyloxy-6-methoxy-3-(3-methoxy-phenylsulfanyl)-1H-indole-2-carboxylic acid

5-Benzo[1,3]dioxol-5-ylmethyl-7-(3-methoxy-phenylsulfanyl)-5H-[1,3]dioxolo[4,5-f]indole-6-carboxylic acid

3-Benzo[1,3]dioxol-5-yl-4-(3,5-dimethoxy-benzyl)-5-hydroxy-5-(4-methoxy-phenyl)-5H-furan-2-one

1-Benzo[1,3]dioxol-5-ylmethyl-3-(3,4-dimethoxy-phenyl)-5,6-dimethoxy-1H-indole-2-carboxylic acid

3-Benzo[1,3]dioxol-5-yl-5-hydroxy-5-(4-methoxy-phenyl)-4-(2,4,5-trimethoxy-benzyl)-5H-furan-2-one

1-Benzyl-5,6-dimethoxy-3-(3-methoxy-phenylsulfanyl)-1H-indole-2-carboxylic acid

N-[4-[[4-(1,3-benzodioxol-5-yl)-2-hydroxy-2-(4-methoxyphenyl)-5-oxofuran-3-yl]methyl]phenyl]acetamide

3-Benzo[1,3]dioxol-5-yl-4-(3,4-dimethoxy-benzyl)-5-hydroxy-5-(4-methoxy-phenyl)-5H-furan-2-one

3-Benzo[1,3]dioxol-5-yl-4-(2,5-dimethoxy-benzyl)-5-hydroxy-5-(4-methoxy-phenyl)-5H-furan-2-one

5,6-Dimethoxy-1-(7-methoxy-benzo[1,3]dioxol-5-ylmethyl)-3-(3-methoxy-phenylsulfanyl)-1H-indole-2-carboxylic acid

1-Benzo[1,3]dioxol-5-ylmethyl-5,6-dimethoxy-3-(3-methoxy-phenylsulfanyl)-1H-indole-2-carboxylic acid

2-[4-Benzo[1,3]dioxol-5-yl-2-(4-methoxy-phenyl)-5-oxo-3-(3,4,5-trimethoxy-benzyl)-2,5-dihydro-furan-2-yloxycarbonylamino]-3-methyl-butyric acid ethyl ester

3-Benzo[1,3]dioxol-5-yl-4-cycloheptylmethyl-5-hydroxy-5-(4-methoxy-phenyl)-5H-furan-2-one

3-Benzo[1,3]dioxol-5-yl-1-benzo[1,3]dioxol-5-ylmethyl-5,6-dimethoxy-1H-indole-2-carboxylic acid

4-Benzyl-5-hydroxy-3-(7-methoxy-benzo[1,3]dioxol-5-yl)-5-(4-methoxy-3-methyl-phenyl)-5H-furan-2-one

3-Benzo[1,3]dioxol-5-yl-4-benzo[1,3]dioxol-5-ylmethyl-5-hydroxy-5-(4-methoxy-phenyl)-5H-furan-2-one

3-Benzo[1,3]dioxol-5-yl-5-hydroxy-4-(4-methoxy-benzyl)-5-(4-methoxy-phenyl)-5H-furan-2-one

1-Benzo[1,3]dioxol-5-ylmethyl-6-benzyloxy-5-methoxy-3-(3-methoxy-phenylsulfanyl)-1H-indole-2-carboxylic acid

3-Benzo[1,3]dioxol-5-yl-4-(2,3-dihydro-benzo[1,4]dioxin-6-ylmethyl)-5-hydroxy-5-(4-methoxy-phenyl)-5H-furan-2-one

4-Benzyl-5-hydroxy-5-(4-methoxy-phenyl)-3-(3,4,5-trimethoxy-phenyl)-5H-furan-2-one

3-Benzo[1,3]dioxol-5-yl-4-benzyl-5-hydroxy-5-(4-methoxy-3-methyl-phenyl)-5H-furan-2-one

ethyl 2-[[4-(1,3-benzodioxol-5-yl)-2-(4-methoxyphenyl)-5-oxo-3-[(3,4,5-trimethoxyphenyl)methyl]furan-2-yl]oxycarbonylamino]acetate

3-Benzo[1,3]dioxol-5-yl-4-(4-dimethylamino-benzyl)-5-hydroxy-5-(4-methoxy-phenyl)-5H-furan-2-one

3-Benzo[1,3]dioxol-5-yl-4-biphenyl-4-ylmethyl-5-hydroxy-5-(4-methoxy-phenyl)-5H-furan-2-one

Sodium salt (Z)-2-benzo[1,3]dioxol-5-yl-4-(4-methoxy-3-methyl-phenyl)-4-oxo-3-(3,4,5-trimethoxy-benzyl)-but-2-enoate

4-[4-Benzo[1,3]dioxol-5-yl-2-hydroxy-2-(4-methoxy-phenyl)-5-oxo-2,5-dihydro-furan-3-ylmethyl]-benzoic acid methyl ester

3-Benzo[1,3]dioxol-5-yl-5-hydroxy-5-(4-methoxy-phenyl)-4-(2,3,4-trimethoxy-benzyl)-5H-furan-2-one

3,5-Bis-benzo[1,3]dioxol-5-yl-4-benzyl-5-hydroxy-5H-furan-2-one

3-Benzo[1,3]dioxol-5-yl-4-(2,3-dimethoxy-benzyl)-5-hydroxy-5-(4-methoxy-phenyl)-5H-furan-2-one

3-Benzo[1,3]dioxol-5-yl-1-benzo[1,3]dioxol-5-ylmethyl-5-methoxy-1H-indole-2-carboxylic acid

3-Benzo[1,3]dioxol-5-yl-1-benzo[1,3]dioxol-5-ylmethyl-5-benzyloxy-1H-indole-2-carboxylic acid

2-[4-Benzo[1,3]dioxol-5-yl-2-(4-methoxy-phenyl)-5-oxo-3-(3,4,5-trimethoxy-benzyl)-2,5-dihydro-furan-2-yloxycarbonylamino]-4-methyl-pentanoic acid ethyl ester

3-(3,4-Dichloro-phenyl)-5-hydroxy-4-(4-methoxy-benzyl)-5-(4-methoxy-phenyl)-5H-furan-2-one

3-Benzo[1,3]dioxol-5-yl-5-hydroxy-4-(4-methanesulfonyl-benzyl)-5-(4-methoxy-phenyl)-5H-furan-2-one

3-Benzo[1,3]dioxol-5-yl-5-hydroxy-4-isoquinolin-1-ylmethyl-5-(4-methoxy-phenyl)-5H-furan-2-one

3-Benzo[1,3]dioxol-5-yl-1-benzo[1,3]dioxol-5-ylmethyl-1H-indole-2-carboxylic acid

4-Benzyl-3-(3,4-dimethoxy-phenyl)-5-hydroxy-5-(4-methoxy-phenyl)-5H-furan-2-one

3-Benzo[1,3]dioxol-5-yl-5-benzyloxy-1-(4-methoxy-benzyl)-1H-indole-2-carboxylic acid

1-Benzo[1,3]dioxol-5-ylmethyl-3-(benzo[1,3]dioxol-5-ylsulfanyl)-1H-indole-2-carboxylic acid

3-Benzo[1,3]dioxol-5-yl-4-benzyl-5-hydroxy-5-(3,4,5-trimethoxy-phenyl)-5H-furan-2-one

3-Benzo[1,3]dioxol-5-yl-4-benzyl-5-hydroxy-5-(4-methoxy-phenyl)-5H-furan-2-one

3-Benzo[1,3]dioxol-5-yl-4-benzyl-5-hydroxy-5-(4-methoxy-phenyl)-5H-furan-2-one

Sodium salt (Z)-2-(7-methoxy-benzo[1,3]dioxol-5-yl)-4-(4-methoxy-phenyl)-4-oxo-3-(2,3,4-trimethoxy-benzyl)-but-2-enoate

4-Benzyl-3-(3,5-dimethoxy-phenyl)-5-hydroxy-5-(4-methoxy-phenyl)-5H-furan-2-one

3-Benzo[1,3]dioxol-5-yl-4-benzyl-5-(4-benzyloxy-phenyl)-5-hydroxy-5H-furan-2-one

3-Benzo[1,3]dioxol-5-yl-1-benzo[1,3]dioxol-5-ylmethyl-6-propoxy-1H-indole-2-carboxylic acid

3-[4-Benzo[1,3]dioxol-5-yl-2-hydroxy-2-(4-methoxy-phenyl)-5-oxo-2,5-dihydro-furan-3-ylmethyl]-benzoic acid methyl ester

1-Benzo[1,3]dioxol-5-ylmethyl-3-(3-methoxy-phenylsulfanyl)-6-propoxy-1H-indole-2-carboxylic acid

1,3-Bis-benzo[1,3]dioxol-5-yl-5,6-dimethoxy-1H-indole-2-carboxylic acid

1-Benzo[1,3]dioxol-5-ylmethyl-3-(3-methoxy-phenylsulfanyl)-1H-indole-2-carboxylic acid

Potassium salt of (Z)-3-(4-acetylamino-benzyl)-2-benzo[1,3]dioxol-5-yl-4-(4-methoxy-phenyl)-4-oxo-but-2-enoate

5-Hydroxy-4-(4-methoxy-benzyl)-3,5-bis-(4-methoxy-phenyl)-5H-furan-2-one

3-Benzo[1,3]dioxol-5-yl-5-hydroxy-5-(4-methoxy-phenyl)-4-(5-oxo-10,11-dihydro-5H-dibenzo[a,d]cyclohepten-1-ylmethyl)-5H-furan-2-one

3-Benzo[1,3]dioxol-5-yl-4-benzyl-5-hydroxy-5-(4-isopropoxy-phenyl)-5H-furan-2-one

1,3-Bis-benzo[1,3]dioxol-5-yl-5-propoxy-1H-indole-2-carboxylic acid

4-Benzyl-5-hydroxy-3-(3-methoxy-phenyl)-5-(4-methoxy-phenyl)-5H-furan-2-one

1,3-Bis-benzo[1,3]dioxol-5-yl-5-benzyloxy-1H-indole-2-carboxylic acid

3-Benzo[1,3]dioxol-5-yl-1-benzyl-1H-indole-2-carboxylic acid

1-Benzyl-3-(3-methoxy-phenylsulfanyl)-1H-indole-2-carboxylic acid

1,3-Bis-benzo[1,3]dioxol-5-yl-5-methoxy-1H-indole-2-carboxylic acid

3-Benzo[1,3]dioxol-5-yl-4-ethyl-5-hydroxy-5-(4-methoxy-phenyl)-5H-furan-2-one

Sodium salt (Z)-3-benzyl-2-(7-methoxy-benzo[1,3]dioxol-5-yl)-4-(4-methoxy-phenyl)-4-oxo-but-2-enoate

3-Benzo[1,3]dioxol-5-yl-5-hydroxy-4-(7-methoxy-benzo[1,3]dioxol-5-ylmethyl)-5-(4-methoxy-phenyl)-5H-furan-2-one

3-Benzo[1,3]dioxol-5-yl-5-hydroxy-5-(4-methoxy-phenyl)-4-(4-nitro-benzyl)-5H-furan-2-one

3-Benzo[1,3]dioxol-5-yl-4-benzyl-5-(3,4-dimethoxy-phenyl)-5-hydroxy-5H-furan-2-one

3-Benzo[1,3]dioxol-5-yl-4-benzyl-5-hydroxy-5-(3-methoxy-phenyl)-5H-furan-2-one

1-Benzo[1,3]dioxol-5-yl-5-benzyloxy-3-(4-methoxy-phenyl)-1H-indole-2-carboxylic acid

1,3-Bis-benzo[1,3]dioxol-5-yl-1H-indole-2-carboxylic acid

(Z)-2-Benzo[1,3]dioxol-5-yl-3-benzyl-4-(4-methoxy-phenyl)-4-oxo-but-2-enoate(2-hydroxy-ethyl)-trimethyl-ammonium

3-(3-Methoxy-phenylsulfanyl)-benzo[b]thiophene-2-carboxylic acid

3-(3-Methoxy-phenylsulfanyl)-benzofuran-2-carboxylic acid

3-Benzo[1,3]dioxol-5-yl-5-methoxy-1-(4-methoxy-phenyl)-1H-indole-2-carboxylic acid

1-Benzo[1,3]dioxol-5-yl-5-methoxy-3-(3-methoxy-phenyl)-1H-indole-2-carboxylic acid

1-Benzo[1,3]dioxol-5-yl-3-(3,4-dimethoxy-phenyl)-5-methoxy-1H-indole-2-carboxylic acid

1-Benzo[1,3]dioxol-5-yl-5-methoxy-3-(4-methoxy-phenyl)-1H-indole-2-carboxylic acid

3-Benzo[1,3]dioxol-5-yl-1-(4-methoxy-phenyl)-1H-indole-2-carboxylic acid

3-Benzo[1,3]dioxol-5-yl-5-methoxy-1-phenyl-1H-indole-2-carboxylic acid

3-Benzo[1,3]dioxol-5-yl-5-chloro-1-phenyl-1H-indole-2-carboxylic acid

3-Benzo[1,3]dioxol-5-yl-6-methoxy-1-phenyl-1H-indole-2-carboxylic acid

3-Benzo[1,3]dioxol-5-yl-4-benzyl-5-methoxy-5-(4-methoxy-phenyl)-5H-furan-2-one

3-Benzo[1,3]dioxol-5-yl-5-(4-methoxy-phenyl)-4-(3,4,5-trimethoxy-benzyl)-5H-furan-2-one

3-Benzo[1,3]dioxol-5-yl-4-benzyl-5-(3,4-dichloro-phenyl)-5-hydroxy-5H-furan-2-one

3-Benzo[1,3]dioxol-5-yl-5-hydroxy-5-(4-methoxy-phenyl)-4-(3-nitro-benzyl)-5H-furan-2-one

4-Benzyl-3-(2,4-dimethoxy-phenyl)-5-hydroxy-5-(4-methoxy-phenyl)-5H-furan-2-one

3-Benzo[1,3]dioxol-5-yl-4-benzyl-5-hydroxy-5-p-tolyl-5H-furan-2-one

3-Benzo[1,3]dioxol-5-yl-4-benzyl-5-(4-chloro-phenyl)-5-hydroxy-5H-furan-2-one

5-(7-Methoxy-benzo[1,3]dioxol-5-ylmethyl)-7-(3-methoxy-phenylsulfanyl)-5H-[1,3]dioxolo[4,5-f]indole-6-carboxylic acid

3-Benzo[1,3]dioxol-5-yl-4-benzyl-5-hydroxy-5-phenyl-5H-furan-2-one

5-Benzyloxy-3-isopropoxy-benzo[b]thiophene-2-carboxylic acid

3-Benzo[1,3]dioxol-5-yl-5-hydroxy-4-(4-hydroxy-benzyl)-5-(4-methoxy-phenyl)-5H-furan-2-one

3-Benzo[1,3]dioxol-5-yl-5-hydroxy-4-(4-methoxy-3-methyl-benzyl)-5-(4-methoxy-phenyl)-5H-furan-2-one

1-Benzo[1,3]dioxol-5-ylmethyl-6-benzyloxy-5-methoxy-3-(3,4,5-trimethoxy-phenylsulfanyl)-1H-indole-2-carboxylic acid

Allyl-carbamic acid 4-benzo[1,3]dioxol-5-yl-2-(4-methoxy-phenyl)-5-oxo-3-(3,4,5-trimethoxy-benzyl)-2,5-dihydro-furan-2-yl ester

((S)-1-Naphthalen-1-yl-ethyl)-carbamic acid 4-benzo[1,3]dioxol-5-yl-2-(4-methoxy-phenyl)-5-oxo-3-(3,4,5-trimethoxy-benzyl)-2,5-dihydro-furan-2-yl ester

[4-(1,3-benzodioxol-5-yl)-2-(4-methoxyphenyl)-5-oxo-3-[(3,4,5-trimethoxyphenyl)methyl]furan-2-yl] N-methylcarbamate

3-[4-Benzo[1,3]dioxol-5-yl-2-(4-methoxy-phenyl)-5-oxo-3-(3,4,5-trimethoxy-benzyl)-2,5-dihydro-furan-2-yloxycarbonylamino]-propionic acid ethyl ester

((S)-1-Phenyl-ethyl)-carbamic acid 4-benzo[1,3]dioxol-5-yl-3-benzyl-2-(4-methoxy-phenyl)-5-oxo-2,5-dihydro-furan-2-yl ester

4-(4-Benzo[1,3]dioxol-5-yl-3-benzyl-2-hydroxy-5-oxo-2,5-dihydro-furan-2-yl)-benzoic acid methyl ester

3-Benzo[1,3]dioxol-5-yl-4-benzyl-5-(4-methoxy-phenyl)-5H-furan-2-one

3-(4-Chloro-phenyl)-5-hydroxy-4-(4-methoxy-benzyl)-5-(4-methoxy-phenyl)-5H-furan-2-one

3-Benzo[1,3]dioxol-5-yl-4-(3,4-dichloro-benzyl)-5-hydroxy-5-(4-methoxy-phenyl)-5H-furan-2-one

3-[4-Benzo[1,3]dioxol-5-yl-2-hydroxy-2-(4-methoxy-phenyl)-5-oxo-2,5-dihydro-furan-3-ylmethyl]-benzoic acid

3-Benzo[1,3]dioxol-5-yl-4-benzyl-5-(2,4-dimethoxy-phenyl)-5-hydroxy-5H-furan-2-one

3-Benzo[1,3]dioxol-5-yl-4-benzyl-5-hydroxy-5-(4-methylsulfanyl-phenyl)-5H-furan-2-one

3-Benzo[1,3]dioxol-5-yl-4-(4-chloro-benzyl)-5-hydroxy-5-(4-methoxy-phenyl)-5H-furan-2-one

3-Benzo[1,3]dioxol-5-yl-5-hydroxy-5-(4-methoxy-phenyl)-4-(4-methyl-benzyl)-5H-furan-2-one

3-Benzo[1,3]dioxol-5-yl-4-benzyl-5-(4-ethyl-phenyl)-5-hydroxy-5H-furan-2-one

5-Hydroxy-4-(4-methoxy-benzyl)-5-(4-methoxy-phenyl)-3-phenyl-5H-furan-2-one

3-Benzo[1,3]dioxol-5-yl-5-hydroxy-5-(4-methoxy-phenyl)-4-naphthalen-1-ylmethyl-5H-furan-2-one

3-Benzo[1,3]dioxol-5-yl-5-hydroxy-5-(4-methoxy-phenyl)-4-(4-methylsulfanyl-benzyl)-5H-furan-2-one

3-Benzo[1,3]dioxol-5-yl-4-benzyl-5-hydroxy-5-(2-methoxy-phenyl)-5H-furan-2-one

3-Benzo[1,3]dioxol-5-yl-5-hydroxy-5-(4-methoxy-phenyl)-4-naphthalen-2-ylmethyl-5H-furan-2-one

3-Benzo[1,3]dioxol-5-yl-5-hydroxy-5-(4-methoxy-phenyl)-4-pyridin-3-ylmethyl-5H-furan-2-one

5-Hydroxy-4-(4-methoxy-benzyl)-5-(4-methoxy-phenyl)-3-p-tolyl-5H-furan-2-one

4-Benzyl-3-(2,5-dimethoxy-phenyl)-5-hydroxy-5-(4-methoxy-phenyl)-5H-furan-2-one

4-(4-Benzo[1,3]dioxol-5-yl-3-benzyl-2-hydroxy-5-oxo-2,5-dihydro-furan-2-yl)-benzoic acid

3-Benzo[1,3]dioxol-5-yl-5-methoxy-5-(4-methoxy-phenyl)-4-(3,4,5-trimethoxy-benzyl)-5H-furan-2-one

3-Benzo[1,3]dioxol-5-yl-5-hydroxy-5-(4-methoxy-phenyl)-4-(3-trifluoromethyl-benzyl)-5H-furan-2-one