A new generation of HIV-1 protease inhibitors encompassing a tertiary-alcohol-based transition-state mimic has been developed. By elongation of the core structure of recently reported inhibitors with two carbon atoms and by varying the P1' group of the compounds, efficient inhibitors were obtained with Ki down to 2.3 nM and EC50 down to 0.17 microM. Two inhibitor-enzyme X-ray structures are reported
Asymmetrische elektrophile α-Amidoalkylierung, 3.Mitt.: Synthesen von Vorstufen für die Erzeugung chiraler N-Acylpyrrolidiniumionen
作者:Klaus Th. Wanner、Georg Höfner
DOI:10.1002/ardp.19893220208
日期:——
Von (S)‐Phenylmilchsäure ((S)‐5) ausgehend werden die Verbindungen (2S, 7aS)‐1, (2S, 7aR)‐1, (2S, 2′S)‐3, (2S, 2′R)‐3 und (S)‐4 synthetisiert. (2S, 7aS)‐1 und (2S, 7aR)‐1 werden aus (S)‐8 durch Cyclokondensation und (2S, 2′S)‐3 und (2S, 2′R)‐3 werden aus (2S, 2′S)‐12 durch anodische oxidative Decarboxylierung erhalten. (S)‐4 wird aus (S)‐15 durch Pd/C‐katalysierte Isomerisierung hergestellt.
Diastereoselective Synthesis of Protected 2,3-Dihydroxynitriles from 2-Hydroxy Acids
作者:Pierre Hutin、Marc Larchevêque
DOI:10.1055/s-2000-6259
日期:——
The DIBAL-H reduction of dioxolanones 2 prepared from 2-hydroxy acids followed by addition of acetone cyanohydrin affords the syn 2,3-dihydroxynitriles in high enantiomerical purities.
Compounds of the formula I:
wherein
R
1
, R
2
, X and N are as defined in the specification;
E is N, CH;
A′ and A″ are terminal groups as defined in the specification.
The compounds have utility as HIV-1 protease inhibitors.
Compounds of the formula I:
wherein
R1, R2, X and N are as defined in the specification;
E is N, CH;
A′ and A″ are terminal groups as defined in the specification.
The compounds have utility as HIV-1 protease inhibitors.