Substituted carbamoyloxy derivatives of phenylethanolamine

Details Substituted carbamoyloxy derivatives of phenylethanolamine Substituted carbamoyloxy derivatives of phenylethanolamine

A - Human Necessities

61

K

260/468

A61K 31/375 (2006.01) A61K 31/27 (2006.01)

Patent

CA 1180021

83 Abstracts New bronchospasmolytically active compounds exhibiting long duration of action and reduced undesired side effects of the structural formula Image and therapeutically acceptable salts thereof, in which -Formula R is selected from the group consisting of -C(CH3)3, Image and Image R1 is selected from the group consisting of H and R2 , R represents the radical of the formula Image wherein R is selected from the group consisting of (a) H (b) alkyl groups containing 1-3 carbon atoms (c) Image wherein R5 is selected from the group consisting of (a) OH (b) alkoxy groups containing 1-3 carbon atoms and wherein R4 is selected from the group consisting of 84 (a) H (b) alkyl groups containing 1-3 carbon atoms, with the proviso that R3 and R4 are combined as follows: when R3 is then is R4 H H alkyl group of 1-3 carbon atoms H or an alkyl group of 1-3 carbon atoms R5 Image H processes for the preparation thereof,chemical inter- mediates at their preparation, pharmaceutical preparations containing them, and their medicinal use.

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