The invention relates to new acetamides derived from 2,3-dihydro-3-phenyl-2-benzofuranone, of general formula I ##STR1## in which: R.sub.1 denotes a hydrogen or halogen atom, R.sub.2 and R.sub.3, which may be identical or different, each denote a hydrogen atom or a linear or branched alkyl radical containing 1 to 4 carbon atoms, a benzyl radical optionally substituted with a halogen atom, with an alkoxy radical containing 1 to 4 carbon atoms or with an alkyl radical having 1 to 4 carbon atoms, or a 3,4-methylenedioxybenzyl radical, or form, together with the nitrogen to which they are attached, a 4-morpholinyl radical or a 1-piperazinyl radical.
该发明涉及从2,3-二氢-3-苯基-2-
苯并呋喃酮衍生的新乙酰胺,其一般式为I:
在该式中:R.sub.1代表氢或卤素原子,R.sub.2和R.sub.3,可以相同也可以不同,每个代表含有1至4个碳原子的线性或支链烷基基团、可能用卤素原子取代的苄基基团、含有1至4个碳原子的烷氧基基团或含有1至4个碳原子的烷基基团,或3,4-亚甲二氧基苄基基团,或与它们附着的氮一起形成4-吗啉基基团或1-
哌嗪基团。