Nomoto Y, Obase H, Takai H, Hirata T, Teranishi M, Nakamura J, Kubo K
Tokyo Research Laboratory, Kyowa Hakko Kogyo Co., Ltd., Japan.
Chem Pharm Bull (Tokyo). 1990 Jun;38(6):1591-5. doi: 10.1248/cpb.38.1591.
A series of quinazoline derivatives with various 4-heterocyclylpiperidino groups at the 4-position was synthesized and tested for cardiotonic activity in anesthetized dogs. Among them, several 6,7-dimethoxyquinazoline derivatives showed potent cardiotonic activity.