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.
[EN] FUSED 6,5 BICYCLIC RING SYSTEM P2 LIGANDS, AND METHODS FOR TREATING HIV<br/>[FR] LIGANDS P2 À SYSTÈME CYCLIQUE 6,5 BICYCLIQUE FUSIONNÉ, ET PROCÉDÉS DE TRAITEMENT D'UNE INFECTION PAR LE VIH
申请人:PURDUE RESEARCH FOUNDATION
公开号:WO2012092168A1
公开(公告)日:2012-07-05
Inhibitors of HIV-1 protease and compositions containing them are described. Use of the inhibitors and compositions containing them to treat HIV, AIDS, and AIDS-related diseases is described.
Novel molecular rearrangements of 4-hydroxy-2-cyclopentenones
作者:L. novák、Cs. Szántay、T. Meisel、J. Aszódi、É. Szabó、J. fekete
DOI:10.1016/s0040-4020(01)96437-3
日期:1985.1
Novel rearrangements of hydroxycyclopentenone derivatives 1 and 24 to 7,9,11 and 31,33,35 are reported. The stereochemistry of the rearrangement is interpreted as the result of synchronous enolate induced [1.5]-sigmatropic rearrangement and stepwise addition-elimination process. Preparation of the various substrates and structural elucidation of new products are also described.
A method of directly separating into its individual diastereomers, diastereomeric mixtures containing optically active compounds of the formulae ##STR1## which comprises first crystallizing the said mixture from an aromatic hydrocarbon solvent to recover one diastereomer, and then recrystallizing the residue from a ketone to recover the remaining diastereomer.
This invention relates to compounds of the formulae ##STR1## wherein n is an integer from 2 to 5; M is H, acyl, lower alkyl, or lower alkoxy alkyl; Q is H or lower alkyl; R is alkyl, alkenyl or analkyl; A is H; Y is OH, acyloxy or alkoxy, and when taken together, Y and A is oxo (O.dbd.), and to novel intermediates therefore.
Inhibitors of HIV-1 protease and compositions containing them are described. Use of the inhibitors and compositions containing them to treat HIV, AIDS, and AIDS-related diseases is described.