3-(2-aminoethyl)-4-3-(trifluoromethyl)benzoyl-3,4-dihydro-2H-1,4-benzoxazine derivatives, their preparation and use in therapy.

摘要

Benzoxazine derivs. of formula (I) and their optical isomers and acid-addn. salts are new. R1 = H, F, Cl, Me, 1-3C alkoxy or NO2; R3 = H or 1-3C alkyl; R4 = 2,3-dihydro-1H-inden-2-yl, 2,3-dihydro-1H-inden-1-yl or 1,2,3,4-tetrahydronaphthalen-1-yl; or NR3R4 = 1,2,3,4-tetrahydro- 9H-pyrido(3,4-b)indol-2-yl, 1,2,3,4-tetrahydro- 9H-pyrido(4,3-b)indol-3-yl, 4,5,6,7-tetrahydro- thieno(2,3-c)pyridin-6-yl, 4,5,6,7-tetrahydro- thieno(3,2-c)pyridin-6-yl or 2,3-dihydro-1H-isoindol-2-yl.