6-chloro-3,4-dihydro-pyrano [2,3-b]pyridines having the R configuration
申请人:Pfizer Inc.
公开号:US05068333A1
公开(公告)日:1991-11-26
The present invention relates to processes and intermediates for the preparation of spiro-heteroazolones. The latter compounds are useful as aldose reductase inhibitors.
本发明涉及用于制备螺环杂异唑酮的过程和中间体。后者化合物可用作醛糖还原酶抑制剂。
Novel pyridine derivatives and processes for their synthesis
申请人:PFIZER INC.
公开号:EP0445950A1
公开(公告)日:1991-09-11
The present invention relates to processes and intermediates for the preparation of spiro-hetero-azolones. The latter compounds are useful as aldose reductase inhibitors.
本发明涉及制备螺杂环唑酮的工艺和中间体。后一种化合物可用作醛糖还原酶抑制剂。
US5068333A
申请人:——
公开号:US5068333A
公开(公告)日:1991-11-26
US5336771A
申请人:——
公开号:US5336771A
公开(公告)日:1994-08-09
2,3-Pyridine annulation. The enantioselective synthesis of an aldose reductase inhibitor
作者:Charles W. Murtiashaw、Ralph Breitenbach、Steven W. Goldstein、Susan L. Pezzullo、George J. Quallich、Reinhard Sarges