The total synthesis of L- (or 1S,2R,3S,5S)-bicarbocyclic nucleosides (8-15) has been accomplished. The key intermediate 3 was synthesized in two steps from the known chiral compound 1 through a stereoselective cyclopropanation under Furukawa conditions and its X-ray structure has been determined. The derivative 4 was utilized to obtain thymine derivative (8). Amine exocyclic pyrimidine (9-12) and purine (13-15) bicarbocyclic L-nucleosides were obtained from the (IS,2R,3S,5S)-2-(3-aminobicyclo[3.1.0]hex-2-yl)ethanol (7). (C) 1999 Elsevier Science Ltd. All rights reserved.
Stereoselective synthesis of α-l-bicarbocyclic nucleosides as potential antiviral drugs
作者:Christine Demaison、Christophe Hourioux、Philippe Roingeard、Luigi A. Agrofoglio
DOI:10.1016/s0040-4039(98)02137-6
日期:1998.12
Synthesis of hitherto unknown carbocyclic α-L-isomeric bicyclo[3.1.0]hexyl nucleosides (8–11) is described. The key intermediate 7 was synthesized in seven steps from the known chiral compound 1 through a stereoselective cyclopropanation under Furukawa conditions. Compounds 8–11 were evaluated as anti-HBV agents in HepG2T14 cells.
Stereoselective Synthesis of Carbocyclic α-L-Homonucleosides
作者:L. A. Agrofoglio、F. Girard、C. Demaison、M-G. Lee、P. Roingeard、A. Fridland
DOI:10.1080/15257779908041509
日期:1999.4
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.
Enantiomeric synthesis of nucleosides
作者:Luigi A. Agrofoglio、Christine Demaison、Loïc Toupet
DOI:10.1016/s0040-4020(99)00424-x
日期:1999.6
The total synthesis of L- (or 1S,2R,3S,5S)-bicarbocyclic nucleosides (8-15) has been accomplished. The key intermediate 3 was synthesized in two steps from the known chiral compound 1 through a stereoselective cyclopropanation under Furukawa conditions and its X-ray structure has been determined. The derivative 4 was utilized to obtain thymine derivative (8). Amine exocyclic pyrimidine (9-12) and purine (13-15) bicarbocyclic L-nucleosides were obtained from the (IS,2R,3S,5S)-2-(3-aminobicyclo[3.1.0]hex-2-yl)ethanol (7). (C) 1999 Elsevier Science Ltd. All rights reserved.