Novel and Efficient Synthesis of 2-Aminooxazoles from Pyrimidin-2(1<i>H</i>)-one
作者:Eugene Babaev、Vadim Alifanov
DOI:10.1055/s-2006-958941
日期:2007.1
Stepwise conversion of pyrimidin-2(1H)-one to 2-amino-5-aryloxazoles via oxazolo[3,2-a]pyrimidinium salts is reported. The sequence involves, (i) regioselective N-alkylation of pyrimidone by phenacyl bromides, (ii) cyclization of obtained 1-(2-aryl-2-oxoethyl)pyrimidin-2(1H)-ones into oxazolo[3,2-a]pyrimidinium salts under the action of fuming sulfuric (or triflic) acid, and (iii) reaction of the obtained
Synthesis of N-(tosylmethyl)carbodiimides and their application in the synthesis of 2-amino-1,3-oxazoles from aldehydes
作者:Albert M. Van Leusen、Hans J. Jeuring、Jurjen Wildeman、Simon P. J. M. Van Nispen
DOI:10.1021/jo00323a018
日期:1981.5
LEUSEN A. M. VAN; JEURING H. J.; WILDEMAN J.; NISPEN S. P. J. M. VAN, J. ORG. CHEM., 1981, 46, NO 10, 2069-2072
作者:LEUSEN A. M. VAN、 JEURING H. J.、 WILDEMAN J.、 NISPEN S. P. J. M. VAN
DOI:——
日期:——
Synthesis and Reactions of N-o-Anisylsulfonylmethyl- and N-o-sec-Butoxysulfonylmethylcarbodiimides with Aldehydes
作者:Vishnu K. Tandon、Kunwar A. Singh、Sanjay Rai、Albert M. van Leusen
DOI:10.3987/com-04-s(p)32
日期:——
Synthesis and in vitro antitumor activity of novel naphthyridinone derivatives
作者:Xue-Dong Jia、Shuo Wang、Ming-Hua Wang、Ming-Liang Liu、Gui-Min Xia、Xiu-Jun Liu、Yun Chai、Hong-Wei He
DOI:10.1016/j.cclet.2016.07.024
日期:2017.2
inhibition against HL60 at 30 μmol/L were further evaluated for their in vitro antitumoractivity by SRB assay. Results reveal that thiazol-2-yl and 3-aminomethyl-4-benzyloxyimino-3-methylpyrrolidin-1-yl groups are optimal at the N-1 and C-7 positions of naphthyridinone core, respectively. 10j exhibits broad-spectrum activity (IC 50 : 1a -resistant ones, and is 1.3-fold to >100-fold more potent than the