Synthesis of Cyclic and Acyclic β-Amino Acids via Chelation-Controlled 1,3-Dipolar Cycloaddition
摘要:
Isoxazolidines have been synthesized in diastereomeric excess up to 94% via a MgBr2-induced chelation-controlled 1,3-dipolar cycloaddition reaction with N-hydroxyphenylglycinol as a chiral auxiliary. The diastereomerically pure isoxazolidines were further transformed into cyclic and acyclic beta-amino acid derivatives.
Synthesis of Cyclic and Acyclic β-Amino Acids via Chelation-Controlled 1,3-Dipolar Cycloaddition
摘要:
Isoxazolidines have been synthesized in diastereomeric excess up to 94% via a MgBr2-induced chelation-controlled 1,3-dipolar cycloaddition reaction with N-hydroxyphenylglycinol as a chiral auxiliary. The diastereomerically pure isoxazolidines were further transformed into cyclic and acyclic beta-amino acid derivatives.
6 SUBSTITUTED 2- HETEROCYCLYLAMINO PYRAZINE COMPOUNDS AS CHK-1 INHIBITORS
申请人:Braganza John Frederick
公开号:US20110144084A1
公开(公告)日:2011-06-16
The present invention is directed to compounds of formula (I),
and pharmaceutically acceptable salts thereof, their synthesis, and their use as CHK-1 inhibitors.
本发明涉及式(I)化合物及其药学上可接受的盐,它们的合成以及它们作为CHK-1抑制剂的用途。
6 SUBSTITUTED 2-HETEROCYCLYLAMINO PYRAZINE COMPOUNDS AS CHK-1 INHIBITORS
申请人:Pfizer Inc.
公开号:EP2328890B1
公开(公告)日:2012-01-25
Synthesis of Cyclic and Acyclic β-Amino Acids via Chelation-Controlled 1,3-Dipolar Cycloaddition
作者:Roger Hanselmann、Jiacheng Zhou、Philip Ma、Pat N. Confalone
DOI:10.1021/jo034940o
日期:2003.10.1
Isoxazolidines have been synthesized in diastereomeric excess up to 94% via a MgBr2-induced chelation-controlled 1,3-dipolar cycloaddition reaction with N-hydroxyphenylglycinol as a chiral auxiliary. The diastereomerically pure isoxazolidines were further transformed into cyclic and acyclic beta-amino acid derivatives.