Synthesis and antidiarrheal activity of N-(aminoiminomethyl)-1H-pyrrole-1-acetamides related to guanfacine
摘要:
A series of N-(aminoiminomethyl)-1H-pyrrole-1-acetamides, related to guanfacine, were prepared and tested for antidiarrheal activity in castor oil dosed rats. trans-N-(Aminoiminomethyl)-2,5-dihydro-2,5-dimethyl-1H-pyrrole-1-acetami de (2), in which the dichlorophenyl ring of guanfacine is replaced by 2,5-dimethyl-2,5-dihydropyrrole, showed potent antidiarrheal activity but possessed only minimal cardiovascular activity in rats.
Synthesis and antidiarrheal activity of N-(aminoiminomethyl)-1H-pyrrole-1-acetamides related to guanfacine
摘要:
A series of N-(aminoiminomethyl)-1H-pyrrole-1-acetamides, related to guanfacine, were prepared and tested for antidiarrheal activity in castor oil dosed rats. trans-N-(Aminoiminomethyl)-2,5-dihydro-2,5-dimethyl-1H-pyrrole-1-acetami de (2), in which the dichlorophenyl ring of guanfacine is replaced by 2,5-dimethyl-2,5-dihydropyrrole, showed potent antidiarrheal activity but possessed only minimal cardiovascular activity in rats.
Guanidines of formula ##STR1## and their pharmaceutically acceptable acid addition salts, (wherein R.sup.1 and R.sup.2 each represents lower alkyl or trifluoromethyl and R.sup.3 and R.sup.4 each represents hydrogen or lower alkyl or R.sup.3 and R.sup.4 together represent dimethylene or trimethylene) are useful in treating or preventing diarrhoea in mammals or poultry. The compound, if desired, may be administered with one or more antimicrobial, adsorbent, anti-emetic, parasympatholytic or antihistaminic agents.
Use of guanidines for manufacturing antidiarrhoeal medicaments and antidiarrhoeal compositions containing these guanidines
申请人:JOHN WYETH & BROTHER LIMITED
公开号:EP0040947A1
公开(公告)日:1981-12-02
Guanidines of formula
and their pharmaceutically acceptable acid addition salts, (wherein R' and R2 each represents lower alkyl or trifluoromethyl and R3 and R4 each represents hydrogen or lower alkyl or R3 and R4 together represent dimethylene or trimethylene) are useful in treating or preventing diarrhoea in mammals or poultry. The compound, if desired, may be administered with one or more antimicrobial, adsorbent, anti-emetic, parasympatholytic or antihystaminic agents.