Hypotensive and antinociceptive effects of ether-linked and relatively non-pungent analogues of N-nonanoyl vanillylamide
作者:IJ Chen、JM Yang、JL Yeh、BN Wu、YC Lo、SJ Chen
DOI:10.1016/0223-5234(92)90002-i
日期:1992.4
N-nonanoyl vanillylamide (1) is a synthetic substitute of capsaicin (2), a pungent principle in red pepper. 1 was reacted with succinic anhydride, 3-chloro-1,2-propanediol, sodium chloroacetate, and 2-chloroethanol to furnish N-nonanoyl vanillylamide-4-succinyl ester (3), N-nonanoyl vanillylamide-4-glyceryl ether (4), sodium N-nonanoyl vanillylamide-4-0-acetate (5) and N-nonanoyl vanillylamide-4-glycol ether (6), respectively. A 3,4-methylenedioxy derivative of 1, N-nonanoyl piperonylamide (7), was synthesized from piperonylamine HCl and nonanoyl chloride. The ether analogues 4-6 all demonstrated marked antinociceptive and hypotensive effects without producing any overt irritation. In addition, these compounds revealed no untoward vagus reflex or transient hypertensive effect as previously found in 1 or 2.