Asymmetric synthesis of 1-deoxynojirimycin and its congeners from a common chiral building block
作者:Hiroki Takahata、Yasunori Banba、Mayumi Sasatani、Hideo Nemoto、Atsushi Kato、Isao Adachi
DOI:10.1016/j.tet.2004.06.112
日期:2004.9
A new, promising chiral building block 9 for the synthesis of 1-deoxy-4,5-trans-oriented azasugars such as 1-deoxynojirimycin (1) was prepared in only four steps from the Garner aldehyde 10 using catalytic ring-closing metathesis (RCM) for the construction of the piperidine ring. In practical test, the first synthesis of all four isomers (1 and 6-8) of trans-4,5-orientated 1-deoxyiminosugars using
使用催化闭环易位反应,从Garner醛10仅四步制备了一种新的,很有前途的手性构建体9,用于合成1-deoxy-4,5-反式氮杂糖如1-deoxynojirimycin(1)。RCM)用于哌啶环的构建。在实际的测试中,所有四种异构体(第一合成1和6 - 8)的反式-4,5-取向使用1- deoxyiminosugars 9作为共同的手性结构单元证实。