105637-72-7

(-)-3-(5-Formyl-2-hydroxyphenyloxy)-4-methoxybenzoic acid (5aS,6S)-1,2,3,4,5a,6-hexahydro-2-methyl-1,4-dioxo-3-thioxooxepino[3,4:4,5]pyrrolo[1,2-a]pyrazine-6-yl ester