Starting from 2,6-dimethyl phenol,antiviral agent pleconaril was synthesized via bromination,cyanidation and etherification followed by reaction with acetaldehyde oxime,hydroxylamine hydrochloride and trifluoroacetic ...Starting from 2,6-dimethyl phenol,antiviral agent pleconaril was synthesized via bromination,cyanidation and etherification followed by reaction with acetaldehyde oxime,hydroxylamine hydrochloride and trifluoroacetic anhydride respectively.Its structure was confirmed by IR,MS, 1 HNMR and elemental analysis.展开更多
目的:观察银杏内酯氯化钠注射液长期给药对犬的各种毒性反应,以评价其安全性。方法:银杏内酯氯化钠注射液0、37.5、75、150mg/kg 每 d 静脉给药1次,每周6d,连续给药13周,观察给药期间动物的一般状况、体重变化、摄食量、体温、尿、粪便...目的:观察银杏内酯氯化钠注射液长期给药对犬的各种毒性反应,以评价其安全性。方法:银杏内酯氯化钠注射液0、37.5、75、150mg/kg 每 d 静脉给药1次,每周6d,连续给药13周,观察给药期间动物的一般状况、体重变化、摄食量、体温、尿、粪便、心电图、血液细胞学及生化学指标、大体解剖及进行组织病理学检查。结果:Beagle 犬静脉注射银杏内酯氯化钠注射液13周,各剂量组动物行为活动均如常,一般情况良好。高、中、低剂量组心电图、犬血液学和血清生化学指标均未见明显与受试物相关的异常改变。给药组动物的脏器重量及其系数与对照组比较未见与给药相关的显著性差异,系统尸检和病理切片结果显示,各受检脏器均未见明显与给药相关的病理改变。结论:在本试验条件下,银杏内酯氯化钠注射液连续静脉给药13周后,犬的无毒剂量为150mg/kg(相当于推荐临床人用剂量100mg/60kg 人/d 的90倍)。展开更多
文摘Starting from 2,6-dimethyl phenol,antiviral agent pleconaril was synthesized via bromination,cyanidation and etherification followed by reaction with acetaldehyde oxime,hydroxylamine hydrochloride and trifluoroacetic anhydride respectively.Its structure was confirmed by IR,MS, 1 HNMR and elemental analysis.
