Microwave Promoted Environmentally Benign Synthesis of 2-Aminobenzothiazoles and Their Urea Derivatives
摘要:
2-Aminobenzothiazoles were efficiently synthesized using stable, crystalline tetrabutylammonium tribromide instead of toxic, corrosive liquid bromine under solvent-free and microwave irradiation condition. Furthermore, benzothiazol-2-ylureas were synthesized in good to high yield by reactions of 2-aminobenzothiazoles with N-trichloroacetanilides, which were used as a substitute for toxic, unstable isocyanates, under microwave irradiation condition. This protocol has advantages of no utilization of hazardous chemicals, rapid reaction rate, high yield, and easy work-up procedure.
[EN] UREA DERIVATIVES FOR TREATING AND/OR PREVENTING CANCER<br/>[FR] DÉRIVÉS D'URÉE POUR LE TRAITEMENT ET/OU LA PRÉVENTION DU CANCER
申请人:CENTRE NAT RECH SCIENT
公开号:WO2020079184A2
公开(公告)日:2020-04-23
The present invention relates to a compound or a pharmaceutically acceptable salt thereof of formulae (I) and (II), and a pharmaceutical composition comprising such compound for use for treating a cancer, particularly a cancer overexpressing CXCR1 and CXCR2 receptors, such as medulloblastoma, head and neck and kidney cancer. The invention further relates to such compounds for use for treating macular degeneration.