TBHP/CoCl<sub>2</sub>-Mediated Intramolecular Oxidative Cyclization of<i>N</i>-(2-Formylphenyl)amides: An Approach to the Construction of 4<i>H</i>-3,1-Benzoxazin-4-ones
作者:Junchao Yu、Daisy Zhang-Negrerie、Yunfei Du
DOI:10.1002/ejoc.201501359
日期:2016.1
The intramolecular oxidativecyclization of N-(2-formylphenyl)amides has been realized through an oxidative C(sp2)–O(sp2) bond-forming reaction between an aldehyde carbon and amide oxygen. This new strategy, which uses tert-butyl hydroperoxide (TBHP) as an oxidant and CoCl2 as the catalyst, allows for the efficient Co-catalyzed synthesis of useful benzoxazin-4-one derivatives and features readily available
Carbostyril derivatives represented by general formula (1), salts thereof, and an apoptosis regulator containing the same as the active ingredient, wherein R represents benzoyl, phenyl-substituted lower alkyl, etc.; R²⁰ represents hydrogen, lower alkyl, etc.; and R²¹ represents hydrogen, lower alkyl, etc. The regulator is useful as antitumor agent, antiretroviral agent, autoimmune disease remedy, immunosuppressant, Alzheimer's disease remedy, hepatic disease remedy, cancer metastasis inhibitor, and so forth.
由通式(1)代表的喹诺酮衍生物、其盐类以及以其为活性成分的细胞凋亡调节剂,其中 R 代表苯甲酰基、苯基取代的低级烷基等;R²⁰ 代表氢、低级烷基等;R²¹ 代表氢、低级烷基等。该调节剂可用作抗肿瘤剂、抗逆转录病毒剂、自身免疫疾病治疗剂、免疫抑制剂、老年痴呆症治疗剂、肝病治疗剂、癌症转移抑制剂等。