Acetic acid (3S,4S,5R,6S)-3-benzyloxy-5-(tert-butyl-dimethyl-silanyloxy)-6-methoxy-4-(4-methoxy-benzyloxy)-tetrahydro-pyran-(2Z)-ylidenemethyl ester 在
mercury(II) trifluoroacetate 、 sodium chloride 作用下,
生成 Acetic acid (1S,3S,4S,5S,6R)-3-benzyloxy-5-(tert-butyl-dimethyl-silanyloxy)-6-hydroxy-4-(4-methoxy-benzyloxy)-2-oxo-cyclohexyl ester 、 Acetic acid (1R,3S,4S,5S,6R)-3-benzyloxy-5-(tert-butyl-dimethyl-silanyloxy)-6-hydroxy-4-(4-methoxy-benzyloxy)-2-oxo-cyclohexyl ester 、 Acetic acid (1R,3S,4S,5S,6S)-3-benzyloxy-5-(tert-butyl-dimethyl-silanyloxy)-6-hydroxy-4-(4-methoxy-benzyloxy)-2-oxo-cyclohexyl ester