Process for preparing esters of alkanoic acids via rearrangement of
申请人:Blasinachim S.p.A.
公开号:US04748253A1
公开(公告)日:1988-05-31
Process for preparing esters of alkanoic acids via rearrangement of alpha-haloketals in the presence of a Lewis acid. The rection is preferably carried out in the presence of catalytic amounts of a Lewis acid and of a diluent at a temperature in the range from about 0.degree. to the reflux temperature of diluent. The esters thus obtained are useful as intermediate products for preparing drugs. The process involves the preparation of new alpha-haloketals.
AMELIORANT OR REMEDY FOR SYMPTOMS CAUSED BY ISCHEMIC DISEASES AND COMPOUNDS USEFUL THEREFOR
申请人:SUNTORY LIMITED
公开号:EP0755923A1
公开(公告)日:1997-01-29
A medicine having the following basic structure, for the alleviation or treatment of symptoms derived from ischemic diseases and seizures, epilepsy, and migraine, having a powerful action in suppressing cytotoxic Ca2+ overload and free from side-effects:
wherein Z = C, CH, or N, X = O or CH2, E and Y = H, OH, a halogen, alkoxy, alkyl, or a halogen-substituted alkyl.
一种具有以下基本结构的药物,用于缓解或治疗缺血性疾病和癫痫发作、癫痫和偏头痛引起的症状,在抑制细胞毒性 Ca2+ 过载方面具有强大的作用,且无副作用:
其中 Z = C、CH 或 N,X = O 或 CH2,E 和 Y = H、OH、卤素、烷氧基、烷基或卤素取代的烷基。