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.
提供了一种新颖的合成路径,用于合成
生物素中间体(3a.alpha.,6a.alpha.)-1,3-二苄基六氢-1H-
噻唑[3,4-d]
咪唑-2(3H)-酮5,5-二氧化物。同时还披露了从这个中间体到
生物素的新颖合成路径。