5-Benzyloxy-pentanoic acid (2R,3S,4aR,6S,7R,8aS)-7-methoxy-6-methoxymethyl-4a-methyl-2-[2-(2-trimethylsilanyl-ethoxycarbonyl)-ethyl]-octahydro-pyrano[3,2-b]pyran-3-yl ester 在
劳森试剂 作用下,
生成
5-Benzyloxy-pentanethioic acid O-{(2R,3S,4aR,6S,7R,8aS)-7-methoxy-6-methoxymethyl-4a-methyl-2-[2-(2-trimethylsilanyl-ethoxythiocarbonyl)-ethyl]-octahydro-pyrano[3,2-b]pyran-3-yl} ester