| 摘要 |
1342760 Phthalazines DAIICHI SEIYAKU CO Ltd 14 Sept 1971 [14 Sept 1970] 42860/71 Heading C2C Novel compounds I (in which each of R 1 , R 2 , R 3 and R 4 is H or C 1-6 alkyl) and their acid addition salts, are prepared by reacting 1-hydrazinophthalazine, or an acid addition salt thereof, with a compound of formula O = C(R 1 )-C(R 2 ) = CR 3 R 4 . Antihypertensive pharmaceutical compositions for oral or parenteral administration comprise a compound I, or an acid addition salt thereof, together with a pharmaceutical carrier. |
