Conformational analysis of tandospirone in aqueous solution
摘要:
The significant contribution of folded conformation (2) of the anxiolytic tandospirone (1) in aqueous solution m;as verified by dynamic H-1 NMR. A structurally rigid mimic of 2 was designed and synthesized to evaluate the implication of 2 ton:ards neuroleptic receptor binding. The designed structures provided a new: rigid scaffold for dopamine D-4 ligands. (C) 2001 Elsevier Science Ltd. All rights reserved.
DOI:
10.1016/s0960-894x(01)00167-6
作为产物:
描述:
盐酸甲胺 、 二聚氰胺 、 、 sodium methylate 、 、 丙二酸二乙酯 在
水 、 四磷十氧化物 作用下,
以
甲醇 、 水 为溶剂,
反应 8.67h,
以affording 35.3 g (25% of theory) of 2-methylamino-4,6-dihydroxypyrimidine with a melting point of 290° C.的产率得到2-(Methylamino)-4,6-pyrimidinediol
The invention relates to N-arylsulfonyl-N'-pyrimidinyl ureas of the general formula ##STR1## and to the salts thereof with amines, alkali metal hydroxides or alkaline earth metal hydroxides or with quaternary ammonium bases. These compounds have good pre- and postemergence selective herbicidal and growth regulating properties. In the formula, R.sub.18 is hydrogen, alkyl or alkoxy, X is an unsubstituted or substituted phenyl radical or an unsubstituted or substituted naphthyl radical, Y is C.sub.1 -C.sub.3 alkyl, C.sub.1 -C.sub.3 haloalkyl, C.sub.1 -C.sub.3 alkoxy, C.sub.1 -C.sub.3 haloalkoxy, C.sub.1 -C.sub.3 alkylthio, C.sub.2 -C.sub.3 alkoxyalkyl, halogen or an unsubstituted amino group and Z is oxygen or sulfur.
The significant contribution of folded conformation (2) of the anxiolytic tandospirone (1) in aqueous solution m;as verified by dynamic H-1 NMR. A structurally rigid mimic of 2 was designed and synthesized to evaluate the implication of 2 ton:ards neuroleptic receptor binding. The designed structures provided a new: rigid scaffold for dopamine D-4 ligands. (C) 2001 Elsevier Science Ltd. All rights reserved.
N-Arylsulfonyl-N'-pyrimidinylureas
申请人:Ciba-Geigy Corporation
公开号:US04478635A1
公开(公告)日:1984-10-23
The invention relates to N-arylsulfonyl-N'-pyrimidinyl ureas of the general formula ##STR1## and to the salts thereof with amines, alkali metal hydroxides or alkaline earth metal hydroxides or with quaternary ammonium bases. These compounds have good pre- and postemergence selective herbicidal and growth regulating properties. In the formula, R.sub.18 is hydrogen, alkyl or alkoxy, X is an unsubstituted or substituted phenyl radical or an unsubstituted or substituted naphthyl radical, Y is C.sub.1 -C.sub.3 alkyl, C.sub.1 -C.sub.3 haloalkyl, C.sub.1 -C.sub.3 alkoxy, C.sub.1 -C.sub.3 haloalkoxy, C.sub.1 -C.sub.3 alkylthio, C.sub.2 -C.sub.3 alkoxyalkyl, halogen or an unsubstituted amino group and Z is oxygen or sulfur.