Quinazoline derivatives having an oxy substituent in 5 and 6 positions are described. The novel quinazoline derivatives are useful as cardiotonic agents.
本文介绍了在5和6位具有氧代取代基的喹嗪衍生物。这些新型喹嗪衍生物可用作心脏强效药。
Substituted 5,6-Dialkoxyquinazoline Derivatives
申请人:ORTHO PHARMACEUTICAL CORPORATION
公开号:EP0227450A2
公开(公告)日:1987-07-01
Quinazoline derivatives having an oxy substituent in 5 and 6 positions are described. The novel quinazoline derivatives are useful as cardiotonic agents.
本研究描述了在 5 和 6 位具有氧基取代基的喹唑啉衍生物。这些新型喹唑啉衍生物可用作强心剂。
US4639518A
申请人:——
公开号:US4639518A
公开(公告)日:1987-01-27
US4672116A
申请人:——
公开号:US4672116A
公开(公告)日:1987-06-09
Synthesis of 5,6-dimethoxyquinazolin-2(1<i>H</i>)-ones
作者:Jeffery B. Press、Victor T. Bandurco、Elizabeth M. Wong、Zoltan G. Hajos、Ramesh M. Kanojia、Robert A. Mallory、Edward G. Deegan、James J. Mcnally、Jerry R. Roberts、Mary Lou Cotter、David W. Graden、John R. Lloyd
DOI:10.1002/jhet.5570230643
日期:1986.11
Synthesis of 5,6-dimethoxyquinazolin-2(1H)-one derivatives was the subject of investigations leading to the preparation of title compounds 11, 13, 14 and 26. Target quinazolines 1 were synthesized in three ways; the route starting from o-vanillin via the intermediacy of 6-amino-2,3-dimethoxyacetophenone (19) was used for most of the preparative work. The unexpected formation of an acid-labile dimer