| abstract |
Compounds of the general formula <IMAGE> (R1 = C1-3 alkoxy; R2,3 = H, C1-3 alkyl or alkoxy; R4 = H, Me; R = C1-6 alkyl) and their salts are intermediates for the preparation of 8-alkoxy- 2-amino-1H-3-benzazepines and salts (antihypertensive agents). |