经过比较50%次亚磷酸水溶液和三丁基氢化锡以及二苯硅烷三种还原剂，S-甲基磺原基适宜的还原剂为50%次亚磷酸水溶液；
After quite inferior hyphoaphoeous acid, 50% phoaphoeous acid solution and tributyl tin hydride S-methyl sulphur being suitable reducing agent is 50% phoaphoeous acid solution;
经过比较50%次亚磷酸水溶液和三丁基氢化锡以及二苯硅烷三种还原剂，S-甲基磺原基适宜的还原剂为50%次亚磷酸水溶液；
After quite inferior hyphoaphoeous acid, 50% phoaphoeous acid solution and tributyl tin hydride S-methyl sulphur being suitable reducing agent is 50% phoaphoeous acid solution;
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