A versatile method for the preparation of 2,2-disubstituted morpholine analogues
摘要:
We describe a versatile synthetic method for the preparation of 2,2-disubstituted morpholine analogues. Iodoetherification of 1,1-disubstituted olefin with N-Boc-aminoethanol using NIS proceeded smoothly in a regioselective manner and the following cyclization was accomplished in good yield. We successfully applied this method for the preparation of the key intermediate 2 of tachykinin receptor antagonist. (C) 2000 Elsevier Science Ltd. All rights reserved.
We report herein the synthesis and stereochemical structure-activity relationships of novel morpholine analogues 12 and 13 with regards to NK1, NK2 and NK3 tachykinin receptor binding affinity. An essential requirement for more potent binding affinities was controlled by absolute configuration. (S,R)-12 and (S,R)-13 exhibited high binding affinities for NK1, NK2 and NK3 receptors.
A versatile method for the preparation of 2,2-disubstituted morpholine analogues
作者:Toshiyasu Takemoto、Yukiko Iio、Takahide Nishi
DOI:10.1016/s0040-4039(00)00016-2
日期:2000.3
We describe a versatile synthetic method for the preparation of 2,2-disubstituted morpholine analogues. Iodoetherification of 1,1-disubstituted olefin with N-Boc-aminoethanol using NIS proceeded smoothly in a regioselective manner and the following cyclization was accomplished in good yield. We successfully applied this method for the preparation of the key intermediate 2 of tachykinin receptor antagonist. (C) 2000 Elsevier Science Ltd. All rights reserved.