An Efficient Asymmetric Synthesis of 2-Substituted 1,4-Benzodiazepin-3-one as a Potential Molecular Scaffold
作者:Nuria Cabedo、Xavier Pannecoucke、Jean-Charles Quirion
DOI:10.1002/ejoc.200400682
日期:2005.4
presence of (R)-phenylglycinol as a chiral inductor. The corresponding acid derivative (16) afforded a conformationally constrained structure suitable for preparing peptidomimetic analogues useful as a novel molecular scaffold. After cleavage of the chiral appendage this approach might also lead efficiently to enantiomerically pure 2-substituted benzodiazepines (15). (© Wiley-VCH Verlag GmbH & Co. KGaA
2-取代的 1,4-苯二氮卓-2-one 化合物 (9-12) 是在 (R)-苯基甘氨醇作为手性诱导剂存在下,通过七元环苯内酰胺 (8) 的高度非对映选择性烷基化获得的。相应的酸衍生物 (16) 提供了构象受限的结构,适用于制备可用作新型分子支架的拟肽类似物。在手性附件裂解后,这种方法也可能有效地产生对映异构纯的 2-取代苯二氮卓类药物 (15)。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005)