N-Substituted Spirosuccinimide, Spiropyridazine, Spiroazetidine, and Acetic Acid Aldose Reductase Inhibitors Derived from Isoquinoline-1,3-diones. 2
作者:Michael S. Malamas、Thomas C. Hohman
DOI:10.1021/jm00039a018
日期:1994.6
isoquinoline-1,3-dione acetic acids 9 exhibited very high intrinsic activity for the aldose reductase enzyme, although minimal or no in vivo activity. The absence of in vivo activity for some of these compounds may be due to poor tissue penetration. In support of this suggestion, the more lipophilic acetyl alkyl carbamate derivatives of these isoquinoline-1,3-dione acetic acids, exhibited enhanced oral
Spiro-lactams and analogs thereof useful as aldose reductase inhibitors
申请人:American Home Products Corporation
公开号:US05130425A1
公开(公告)日:1992-07-14
This invention relates to spiro-lactams and their pharmaceutically acceptable salts thereof, to processes for their preparation, to methods for using the compounds, and to pharmaceutical preparations thereof. The compounds have pharmaceutical properties which render them beneficial for the prevention or treatment of diabetes mellitus associated complications.
Facile synthesis of novel spiro[azetidine-2,4′(1′<i>H</i>)-isoquinoline-1′,3′,4(2′<i>H</i>)-triones]
作者:Michael S. Malamas
DOI:10.1002/jhet.5570310254
日期:1994.3
A convenient general method for the synthesis of a new heterocycle, spiro[azetidine-2,4′(1′H)-iso-quinoline-1′,3′,4(2′H)-trione] is described. The key intermediate 2 was prepared by direct halogenation of position-4 of acid 3 with thionyl chloride, and subsequent treatment of the generated 4-Cl, 4-acetyl chloride 11 with a THF/NH3 solution at low temperature.