二硫化碳 、
(2E,6E)-(R)-1-[(2S,4S,6S,8S,9S)-4-(tert-Butyl-diphenyl-silanyloxy)-8,9-dimethyl-1,7-dioxa-spiro[5.5]undec-2-yl]-3,5-dimethyl-8-(tetrahydro-pyran-2-yloxy)-octa-2,6-dien-1-ol 、
碘甲烷 在
sodium hydride 作用下,
以
四氢呋喃 为溶剂,
生成 Dithiocarbonic acid S-[(E)-(R)-1-{(E)-2-[(2S,4S,6S,8S,9S)-4-(tert-butyl-diphenyl-silanyloxy)-8,9-dimethyl-1,7-dioxa-spiro[5.5]undec-2-yl]-vinyl}-1,3-dimethyl-6-(tetrahydro-pyran-2-yloxy)-hex-4-enyl] ester S-methyl ester 、 Dithiocarbonic acid S-[(E)-(R)-1-{(E)-2-[(2S,4S,6S,8S,9S)-4-(tert-butyl-diphenyl-silanyloxy)-8,9-dimethyl-1,7-dioxa-spiro[5.5]undec-2-yl]-vinyl}-1,3-dimethyl-6-(tetrahydro-pyran-2-yloxy)-hex-4-enyl] ester S-methyl ester