申请人:Sandoz, Inc.
公开号:US04055649A1
公开(公告)日:1977-10-25
Compounds of the formula ##STR1## wherein R is secondary alkyl of 3 to 7 carbon atoms or tertiary alkyl of 4 to 7 carbon atoms, R' is secondary alkyl of 3 to 7 carbon atoms or tertiary alkyl of 4 to 7 carbon atoms, R.sub.1 is primary or secondary alkyl of 1 to 5 carbon atoms, and R.sub.2 is hydrogen, chloro or bromo, And the pharmaceutically acceptable acid addition salts thereof, are useful as anti-obesity and anti-diabetic agents. The compounds wherein R and R' are tertiary alkyl of 4 to 7 carbon atoms and R.sub.2 is hydrogen are synthesized from ketenimines and amidines, all of the compounds wherein R.sub.2 is hydrogen are synthesized by reduction of the corresponding 3-cyanopyridines, and the compounds wherein R.sub.2 is chloro or bromo are synthesized from the corresponding compounds wherein R.sub.2 is hydrogen and an N-halosuccinimide.
式为##STR1##的化合物,其中R是3至7个碳原子的次烷基或4至7个碳原子的三级烷基,R'是3至7个碳原子的次烷基或4至7个碳原子的三级烷基,R.sub.1是1至5个碳原子的一级或次烷基,R.sub.2是氢、氯或溴,以及其药学上可接受的酸盐,可用作抗肥胖和抗糖尿病药物。其中R和R'为4至7个碳原子的三级烷基,R.sub.2为氢的化合物是从酮亚胺和酰胺合成的,所有其中R.sub.2为氢的化合物是通过还原相应的3-氰基吡啶合成的,其中R.sub.2为氯或溴的化合物是从R.sub.2为氢的相应化合物和N-卤代琥珀酰亚胺合成的。