Synthesis and biological evaluation of 3-(1,3,4-oxadiazol-2-yl)-1,8-naphthyridin-4(1<i>H</i>)-ones as cisplatin sensitizers
作者:Xueyan Hou、Hao Luo、Mengqi Zhang、Guoyi Yan、Chunlan Pu、Suke Lan、Rui Li
DOI:10.1039/c8md00464a
日期:——
A series of novel 3-(1,3,4-oxadiazol-2-yl)-1,8-naphthyridin-4(1H)-one derivatives were synthesized and their anti-cancer as well as cisplatin sensitization activities were evaluated. Among them, compounds 6e and 6h exhibited significant cisplatin sensitization activity against HCT116. Hoechst staining and annexin V-FITC/PI dual-labeling studies demonstrated that the combination of 6e/6h and cisplatin
[EN] OXOPYRIDO[1,2-A]PYRIMIDINE COMPOUNDS FOR THE TREATMENT AND PROPHYLAXIS OF BACTERIAL INFECTION<br/>[FR] COMPOSÉS D'OXOPYRIDO [1,2-A] PYRIMIDINE POUR LE TRAITEMENT ET LA PROPHYLAXIE D'UNE INFECTION BACTÉRIENNE
申请人:HOFFMANN LA ROCHE
公开号:WO2020127624A1
公开(公告)日:2020-06-25
The present invention relates to novel compounds of formula (I), wherein R1 to R7 are as described herein, and their pharmaceutically acceptable salt, enantiomer or diastereomer thereof, and compositions including the compounds and methods of using the compounds.
A Rapid and Convenient Synthesis of Naphthyridinoyl Pyrazolidinones under Microwave Irradiation Condition
作者:Muggu V.S.R.K. Chaitanya、Pramod K. Dubey
DOI:10.2174/157017812801264638
日期:2012.5.1
Microwave-assisted synthesis of naphthyridinoylpyrazolidinones (7a-7j) has been achieved rapidly via the
reaction of naphthyridine hydrazide (4) with different β-keto esters and ethoxymethylenemalonic ester (EMME) (5a-5e).
Initially, the reaction of naphthyridine hydrazide (4) with various β-keto esters under microwave irradiation for 5 mins at
130oC results in the formation of condensed products 6a-6j. This condensation was followed by cyclization, also, in
diphenyl ether under microwave irradiation for 10 mins at 230-250oC, yielding the corresponding cyclized products 7a-7j.
Alternatively, both reactants 4 and each of the β -keto esters/EMME (5a-5e) were treated in diphenyl ether under
microwave irradiation for 15 mins at 230-250oC giving the target molecules 7a-7j as one-pot reaction in good yields.