7-benzenesulfinyl-4-hydroxy-isoquinoline-3-carboxylic acid butyl ester 、 2-[(5Z)-5-[[4-[3-(2,2-diphenylethenyl)phenyl]-2,3,3a,8b-tetrahydro-1H-cyclopenta[b]indol-8-yl]methylidene]-4-oxo-2-sulfanylidene-1,3-thiazolidin-3-yl]acetic acid 生成 [(7-benzenesulfinyl-4-hydroxy-isoquinoline-3-carbonyl)-amino]-acetic acid