Beta-alanine derivatives and their use as receptor antagonists

Details Beta-alanine derivatives and their use as receptor antagonists Beta-alanine derivatives and their use as receptor antagonists

C - Chemistry, Metallurgy

07

D

C07D 401/06 (2006.01) A61K 31/445 (2006.01) C07D 211/00 (2006.01) C07D 211/60 (2006.01) C07D 401/14 (2006.01) C07K 5/02 (2006.01) A61K 38/00 (2006.01)

Patent

CA 2400631

A beta-alanine derivative of the formula (I) wherein R1 is hydrogen atom or an amino protective group; A is a lower alkylene group or a lower alkenylene group; R2 is hydrogen atom or an amino group which may be substituted with an acyl group; R3 is hydrogen atom or an aryl or aralkyl group which may be substituted with one or more of hydroxy and/or lower alkoxy, a moiety represented by the formula (II), which is a bivalent N-containing 6- to 8- membered heterocyclic group, or a pharmaceutically acceptable salt thereof.

L'invention concerne un dérivé de bêta-alanine, ou un sel pharmaceutiquement acceptable correspondant, représenté par la formule (I), dans laquelle R?1¿ est un atome d'hydrogène ou un groupe de protection amino; A est un groupe alkylène inférieur ou alcénylène inférieur; R?2¿ est un atome d'hydrogène ou un groupe amino pouvant être substitué par un groupe acyle; R?3¿ est un atome d'hydrogène ou bien un groupe aryle ou aralkyle pouvant être substitué par un ou plusieurs groupes hydroxy et/ou alcoxy inférieur, et une fraction représentée par la formule (II), qui est un groupe hétérocyclique à 6 ou 8 éléments dans lequel N est bivalent.

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