The present invention relates to novel acetamide compounds having a substituted heterocyclic group and consecutive dicarbonyl structures, for example, 1-pyrimidinylacetamide compounds, and these compounds have inhibitory activity on chymotrypsin type proteases and are useful as inhibitors for said enzymes, particularly as chymase inhibitors. The novel acetamide compounds of the present invention are shown in formula (I) below:
wherein R0 is substituted or unsubstituted phenyl; R1 is aryl or heteroaryl which may be substituted or unsubstituted; R2 is substituted or unsubstituted alkyl, arylalkyl, or heteroarylalkyl; R3 is hydrogen; acyl group; sulfonyl group; isocyanate group; thiourea; a lower alkyl or a substituted lower alkyl; aryl (1-7C) alkyl, heteroaryl (1-7C) alkyl, aryl and heteroaryl; X represents a carbon atom and Y represents a nitrogen atom; and Z is a polymethylene group wherein a hydrogen atom in the polymethylene may be replaced.
NOVEL ACETAMIDE DERIVATIVES AND PROTEASE INHIBITORS
申请人:NIPPON KAYAKU KABUSHIKI KAISHA
公开号:EP0936216A1
公开(公告)日:1999-08-18
The present invention relates to novel acetamide derivatives having a substituted heterocyclic group and consecutive dicarbonyl structures, for example 1-pyrimidinylacetamide compounds, 1-pyrazinylacetamide compounds, 1-triazinylacetamide compounds etc., and these compounds have inhibitory activity on chymotrypsin type proteases and are useful as inhibitors for said enzymes, particularly as chymase inhibitors. The novel acetamide derivatives of the present invention are shown in formula (I) below:
wherein R0 is substituted or unsubstituted phenyl; R1 is aryl, heteroaryl or aliphatic lower alkyl which may be substituted or unsubstituted; R2 is substituted or unsustituted alkyl, arylalkyl, or heteroarylalkyl; R3 is hydrogen; acyl group; sulfonyl group; isocyanate group; thiourea; or hydrogen, a lower alkyl or a substituted lower alkyl; aryl (1-7C) alkyl, heteroaryl (1-7C) alkyl, aryl and heteroaryl;
X and Y independently represent a nitrogen atom or a carbon atom; and Z is a polymethylene group wherein a hydrogen atom in the polymethylene may be replaced.
本发明涉及具有取代杂环基团和连续二羰基结构的新型乙酰胺衍生物,例如1-嘧啶基乙酰胺化合物、1-吡嗪基乙酰胺化合物、1-三嗪基乙酰胺化合物等,这些化合物对糜蛋白酶型蛋白酶具有抑制活性,可用作上述酶的抑制剂,特别是糜蛋白酶抑制剂。本发明的新型乙酰胺衍生物如下式(I)所示:
其中 R0 是取代或未取代的苯基;R1 是芳基、杂芳基或可取代或未取代的脂肪族低级烷基;R2 是取代或未取代的烷基、芳烷基或杂芳基;R3 是氢;酰基;磺酰基;异氰酸酯基;硫脲;或氢、低级烷基或取代的低级烷基;芳基(1-7C)烷基、杂芳基(1-7C)烷基、芳基和杂芳基;
X 和 Y 独立地代表一个氮原子或一个碳原子;Z 是一个聚亚甲基,其中聚亚甲基中的一个氢原子可被取代。
US6271238B1
申请人:——
公开号:US6271238B1
公开(公告)日:2001-08-07
An Efficient Method for the Preparation of Versatile Building Blocks: 1-Substituted 2,2-Dimethoxyethylamine Hydrochlorides
作者:Xinyan Wang、Yuefei Hu、Bo Liu、Deyong Su、Guolin Cheng、Hui Liu
DOI:10.1055/s-0029-1216943
日期:2009.10
A novel method for the preparation of 1-substituted 2,2-dimethoxyethylamine hydrochlorides was developed. The method includes three highly efficient steps: (1) direct use of aqueous (MeO)2CHCHO for the preparation of N,O-acetal by condensation with Betti base without acidic catalyst; (2) regioselective alkylations of the N,O-acetal with Grignard reagents; and (3) Pd/C catalytic hydrogenolyses of benzylamines