Stereoselective Synthesis of Carbocyclic α-L-Homonucleosides
摘要:
The synthesis of several optically pure carbocyclic alpha-1-isomeric homonucleosides [3a-e, 6a,b, 7a,b, 10a-d] is reported. The(1R, 5S)-2-oxabicyclo[3.3.0] oct-6-en-3-one 1 was used as a chiral starting material.
Synthesis of enantiomerically pure carbocyclic α-l-isomeric homonucleosides
摘要:
Synthesis of hitherto unknown carbocyclic alpha-L-isomeric homonucleosides (8a-b, 9a-b) is described. The key intermediate 6 was synthesized from the known compound I as a chiral starting material. Construction of the heterocyclic moiety around the amino group of 6 afforded carbocyclic alpha-L-isomeric 2',3'-dideoxyhomanucleosides 8a-b and their 2',3'-didehydro-2',3'-dideoxy derivatives 9a-b. (C) 1998 Elsevier Science Ltd. All rights reserved.