protocol has been developed for the synthesis of 2,3-dihydroquinazolinone compounds from anthranilamide and aldehydes or ketones via ionicliquidcatalyzed cyclization reaction. The reaction features high efficiency, shorter reaction duration, mild reaction conditions and inexpensive reagents. The catalyst was recovered and reused. The recyclability of ionicliquid resulted in excellent yields of products
6-Alkylamino- and 2,3-Dihydro-3‘-methoxy-2-phenyl-4-quinazolinones and Related Compounds: Their Synthesis, Cytotoxicity, and Inhibition of Tubulin Polymerization
作者:Mann-Jen Hour、Li-Jiau Huang、Sheng-Chu Kuo、Yi Xia、Kenneth Bastow、Yuka Nakanishi、Ernest Hamel、Kuo-Hsiung Lee
DOI:10.1021/jm000151c
日期:2000.11.1
As part of our continuing search for potential anticancer candidates among 2-phenyl-4-quinolones and 2-phenyl-4-quinazolinones, two series of 6,7,2',3',4',5'-substituted 2-phenyl-4-quinazolinones and 6,2',3',4',5'-substituted 2,3-dihydro-2-phenyl-4-quinazolinones were synthesized and evaluated for cytotoxicity and as inhibitors of tubulin polymerization. In general, a good correlation was found between the two activities. Five of the 6-substituted heterocyclic 2-phenyl-4-quinozolinones (37-51) showed significant cytotoxicity against a panel of human tumor cell lines with EC50 values in the low micromolar to nanomolar concentration ranges. Compound 38 was the most potent of these compounds, as well as the most potent inhibitor of tubulin polymerization in this series. The activity of 38 was in the same range as those of the antimitotic natural products, colchicine, podophyllotoxin, and combretastatin A-4. Substituted 2-phenyl-4-quinazolinones and 2,3-dihydro-2-phenyl-4-quinazolinones also displayed highly selective cytotoxicity against the ovarian cancer 1A9 and P-gp resistant KB-VIN cell lines.
US6479499B1
申请人:——
公开号:US6479499B1
公开(公告)日:2002-11-12
Self-Assembled Nanoliposomes of Phosphatidylcholine: Bridging the Gap between Organic and Aqueous Media for a Green Synthesis of Hydroquinazolinones
Self-assembly of phosphatidylcholine in water creates liposomal nanoreactors for environmentally friendly synthesis of hydroquinazolinones by two- or three-component reactions, without the use of an extra catalyst or solvent. Recycling of the reaction medium and the absence of a need for other organic reagents are further advantages of this protocol.