A practical stereospecific synthesis of the biotin precursor (3aα,6aα)-1,3-dibenzylhexahydro-1H-thieno[3,4-d]imidazol-2(3H)-one 1,1-dioxide
作者:Hans Aaron Bates、Lloyd Smilowitz、Stuart B. Rosenblum
DOI:10.1039/c39850000353
日期:——
A highly efficient stereospecific synthesis of the biotin precursor (3aα,6aα)-1,3-dibenzylhexahydro-1H-thieno[3,4-d]imidazol-2(3H)-one 1,1-dioxide (6) is reported, by the cyclisation of the urea (5), which was obtained from the amine (4), (4) itself being prepared by the reaction of the dibromide (2) with benzylamine.
生物素前体(3aα,6aα)-1,3-二苄基六氢-1 H-噻吩并[3,4- d ]咪唑-2(3 H)-1,1-二氧化物(6)的高效立体定向合成为据报道,通过使由胺(4)获得的脲(5)环化,(4)本身是通过二溴化物(2)与苄胺的反应制备的。