Novel synthetic routes to (3a.alpha.,6a.alpha.)-1,3-dibenzyl hexahydro-1H-thieno[3,4-d]imidazol-2(3H)-one 5,5-dioxide, a known intermediate in the synthesis of biotin are provided. A novel synthetic route from this intermediate to biotin is also disclosed.
提供了一种新的合成路径,用于合成(3a.alpha.,6a.alpha.)-1,3-二苯甲基六氢-1H-
噻唑[3,4-d]
咪唑-2(3H)-酮5,5-二氧化物,该化合物是
生物素合成中已知的中间体。还公开了从该中间体到
生物素的新的合成路线。