Carbenium Ions in Substitution Reactions at the Amino Nitrogen Atom
作者:L. P. Yunnikova、V. V. Esenbaeva
DOI:10.1134/s1070428018070084
日期:2018.7
Tropylium, xanthylium, and tritylium salts characterized by different stabilities differently reacted with biologically active amines. The reactions of tropylium perchlorate and tetrafluoroborate with 4-(cyclohepta-2,4,6-trien-1-yl)aniline was accompanied by hydrolysis of the N-(cyclohepta-2,4,6-trien-1-yl) derivative, the N-xanthenyl derivative underwent dehydrogenation, whereas tritylium perchlorate
作者:Paul E. Bender、Carl D. Perchonock、William G. Groves、Robert C. Smith、Orum D. Stringer、Rayvon Sneed、Jack H. Schlosser、Linda S. Hostelley、Bruce Y. H. Hwang
DOI:10.1021/jm00363a003
日期:1983.9
9H-xanthen-9-amines possessing a wide variety of nitrogensubstituents at C-9 was prepared for evaluation of gastric antisecretory activity. These substituents included the acetamidine, imidate, pyrimidine, thiazoline, quinuclidine, 2-hydrazinopyridine, aminopiperidine, aminoalkylimidazole, and aminoalkylpyridine moieties. The majority of compounds in this series inhibited gastric acid secretion when tested orally in