Enantioselective synthesis of cyclopropane aminoalcohols containing quaternary stereogenic centers
作者:Joan Rifé、Rosa M. Ortuño
DOI:10.1016/s0957-4166(99)00463-2
日期:1999.10
Some title compounds have been synthesized in enantiomerically pure form starting from d- or l-glyceraldehyde as chiral precursors. A new synthesis of (+)-(Z)-methanohomoserine, one of the key intermediates employed, is also described. The target molecules are densely functionalized. Thus, in addition to one or two hydroxyl groups on a side-chain, an amino group is attached to a quaternary carbon of
从对-或1-甘油醛作为手性前体开始,已经以对映体纯的形式合成了一些标题化合物。还描述了一种新合成的(+)-(Z)-甲氨基高丝氨酸,它是所使用的关键中间体之一。靶分子被密集地官能化。因此,除了侧链上的一个或两个羟基之外,氨基还连接到环丙烷环的季碳上,并且该立体中心的第四取代基包含卤素原子,烷基或环氧基。具有醇,硫醚或酯的功能。这些化合物中的一些在合成新的环丙烷核苷中是有用的前体。