p. 3783 - 3785
(2007/10/03)2-(4-methoxy-benzenesulfonyl)-acetic acid tert-butyl ester
4-Methoxybenzenethiol
4-benzyl 1-tert-butyl 2-(4-methoxyphenylsulfonyl)succinate
4-benzyl 1-tert-butyl 2-(4-methoxyphenylthio)succinate
4-(benzyloxy)-2-(4-methoxyphenylsulfonyl)-4-oxobutanoic acid