| 摘要 |
<p>Novel substituted 2-piperidino-4-amino-6,7-dimethoxy-quinazolines having the formula <CHEM> wherein R is an alkyl containing 1 to 5 carbons, a cycloalkyl containing 3 to 7 carbons, benzyl, an alkoxy containing 1 to 5 carbons, benzyloxy, or a group -NR<1>R<2>, wherein R min or R sec is hydrogen or a chained alkyl containing 4 to 5 carbons or wherein R<1> and R<2>, together with the nitrogen atom, form a cyclic amino group containing 3 to 7 carbons, which amino group may be substituted by one or two lower-alkyl groups, or their pharmaceutically acceptable salts.</p> |
