Synthesis and cardiotonic activity of a series of substituted 4-alkyl-2(1H)-quinazolinones
作者:Victor T. Bandurco、Charles F. Schwender、Stanley C. Bell、Donald W. Combs、Ramesh M. Kanojia、Seymour D. Levine、Dennis M. Mulvey、Mary A. Appollina、Marianne S. Reed
DOI:10.1021/jm00391a026
日期:1987.8
The synthesis, cardiac fraction III cyclic nucleotide phosphodiesterase (PDE-III) inhibition, and positive inotropic activity of a series of 2(1H)-quinazolinones are reported. A general synthesis of the series involved the cyclization of 2-aminoacetophenones with potassium cyanate in acetic acid. Modifications at the 4-position of the quinazoline nucleus were best achieved by formation of the intermediate
Electrophilic Tetraalkylammonium Nitrate Nitration. II. Improved Anhydrous Aromatic and Heteroaromatic Mononitration with Tetramethylammonium Nitrate and Triflic Anhydride, Including Selected Microwave Examples
作者:Scott A. Shackelford、Mark B. Anderson、Lance C. Christie、Thomas Goetzen、Mark C. Guzman、Martha A. Hananel、Wayne D. Kornreich、Haitao Li、Ved P. Pathak、Alex K. Rabinovich、Ranjan J. Rajapakse、Larry K. Truesdale、Stella M. Tsank、Haresh N. Vazir
DOI:10.1021/jo026202q
日期:2003.1.1
A new one-pot nitration employing tetramethylammonium nitrate and trifluoromethanesulfonic anhydride in dichloromethane to provide a ready source of the nitronium triflate nitrating agent is presented. Rapid and selective nitration with a variety of aromatic and heteroaromatic substrates is achieved resulting in the synthesis of several novel organic compounds. A distinct advantage is the removal of
Quinazolinone derivatives having an oxy substituent in the 5- and 6-positions are disclosed. The quinazolinone derivatives are useful as cardiovascular agents.
公开了在5-和6-位上具有氧基取代物的喹唑啉酮衍生物。这些喹唑啉酮衍生物可用作心血管药物。
Substituted 5,6-dialkoxyquinazoline derivatives
申请人:Ortho Pharmaceutical Corporation
公开号:US04672116A1
公开(公告)日:1987-06-09
Quinazoline derivatives having an oxy substituent in 5 and 6 positions are described. The novel quinazoline derivatives are useful as cardiotonic agents.
描述了在5和6位置具有氧基取代物的喹唑啉衍生物。这些新型喹唑啉衍生物可用作强心剂。
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.