[EN] PROCESS TO MAKE HIV PROTEASE INHIBITOR FROM 2(S)-4-PICOLYL-2-PIPERAZINE-t-BUTYLCARBOXAMIDE [FR] PROCEDE DE FABRICATION D'UN INHIBITEUR DE LA PROTEASE DU VIRUS VIH A PARTIR DU 2(S)-4-PICOLYL-2-PIPERAZINE-t-BUTYLCARBOXAMIDE
[EN] PROCESS TO MAKE HIV PROTEASE INHIBITOR FROM 2(S)-4-PICOLYL-2-PIPERAZINE-t-BUTYLCARBOXAMIDE [FR] PROCEDE DE FABRICATION D'UN INHIBITEUR DE LA PROTEASE DU VIRUS VIH A PARTIR DU 2(S)-4-PICOLYL-2-PIPERAZINE-t-BUTYLCARBOXAMIDE
This invention relates to heterocyclic compounds of the formulas shown in the specification. It also relates to methods for treating inflammatory diseases or immune diseases, developmental or degenerative diseases, and tissue injuries with one of the heterocyclic compounds.
There are provided compounds of Formula (I), or the pharmaceutically acceptable salts thereof, wherein X, Y, Z, V1, V2, R1, R2, R3, R4 and R5 are as herein described, processes for obtaining said compounds and pharmaceutical preparations containing them. These compounds are useful as anticancer agents, in particular as agents in the treatment of solid tumors.
2-cyanopiperazine and method of producing the same
申请人:Mitsubishi Chemical Corporation
公开号:US05698697A1
公开(公告)日:1997-12-16
2-Cyanopiperazine represented by the following formula (1): ##STR1## or a salt thereof. The 2-cyanopiperazine can be produced by reacting a 2-halogenoacrylonitrile with ethylenediamine or by reacting a 2,3-dihalogenopropionitrile with ethylenediamine. The 2-cyanopiperazine is useful as an intermediate for medicaments, agricultural chemicals, etc., and optically active N-tert-butyl-2-piperazine carboxamide, which is useful as an intermediate in preparation of the HIV protease inhibitor indinavir, can be easily produced using the 2-cyanopiperazine.
Reaction calorimetry was the primary tool in investigations of the liquid-phase hydrogenation of a substitutedpyrazine compound carried out over supported Pd catalysts. In addition to providing information about gas-liquid mass transfer limitations, calorimetric measurements provided a kinetic analysis of how product selectivity in this consecutive reaction network may be tuned by changing reaction
PROCESS FOR PRODUCING N-tert-BUTYL-2-PYRAZINECARBOXAMIDE AND N-tert-BUTYL-2-PIPERAZINECARBOXAMIDE
申请人:KOEI CHEMICAL CO., LTD.
公开号:EP0680955A1
公开(公告)日:1995-11-08
A process for producing an N-tert-butyl-2-pyrazinecarboxamide represented by general formula (2) by the reaction of a cyanopyrazine represented by general formula (1) with tert-butyl alcohol in the presence of sulfuric acid; and a process for producing an N-tert-butyl-2-piperazinecarboxamide represented by general formula (3) by the hydrogenation of an N-tert-butyl-2-pyrazinecarboxamide represented by the above general formula (2) in the presence of Raney nickel or Raney cobalt.