Studies on Pyrimidine Derivatives. III. Synthesis of Thiazolo [5, 4-d] pyrimidines and Related Compounds. (3).
نویسندگان
چکیده
منابع مشابه
Pyrimidine studies. III. Effect of several compounds with antitumor activity on utilization of precursors for synthesis of nucleic acid pyrimidines.
Addition of amethopterin to an incubation medium containing slices of the human tumor transplants H.S. #1 and II.Ep. #3 decreased selectively the utilization of orotie acid-C 1~ for the synthesis of DNA thymine. A substantially larger depression of the specific activity of DNA thymine was observed upon addition of both amethopterin and 5-bromouridine to the incubation medium than upon addition ...
متن کاملSynthesis and antitumor evaluation of novel dihydropyrimidine, thiazolo[3,2-a]pyrimidine and pyrano[2,3-d]pyrimidine derivatives.
A simple and efficient method has been developed for the synthesis of 4,5-dihydro-2-mercapto-4-oxo-6-substituted arylpyrimidine derivatives (2a-e) and their fused rings (3b, 4b, 5b & 6b) and also 1,4-dihydro-2-mercaptopyrimidine derivatives (7a-e) & (9a-e) using triethylamine as a catalyst. The structure of the newly synthesized compounds was confirmed on the basis of their spectral data and el...
متن کاملMicrowave assisted synthesis of [4, 5-e] [1, 3, 4]thia- diazin-7-yl] hydrazine Derivatives
New pyrimido [4, 5-e] [1, 3, 4]thia- diazin-7-yl] hydrazines were synthesized via the cyclocondensation of alkyl-2-phenylhydrazinecarbodithioates as a binucleophile with 5-bromo-2,4-dichloro-6-methylpyrimidine as a bielectrophile , and replacement of C-7 chloro atom by hydrazine in ethanol as the solvent . This method has advantages over methods currently described in the literature for the con...
متن کاملSynthesis and Biological Evaluation of 4-hydroxychromenyl arylmethyl-6-hydroxy pyrimidine-2, 4-dione Derivatives
Background: An efficient, promoted tri-component catalytic reaction between barbituric acid (or N,N-dimethyl barbituric acid), 4-hydroxy coumarin, and a wide range of aryl aldehydes using zinc oxide nanowires (ZnO NWs) to obtain some new 4-hydroxychromenylarylmethyl-6-hydroxypyrimidine-2,4-diones is described. Method: The reactants were successfully condensed ...
متن کاملSynthesis, Anti-hepatitis B and C Virus Activity and Antitumor Screening of Novel Thiazolo[4,5-d]-pyrimidine Derivatives.
The paper describes the synthesis, antivirus and antitumor evaluation of novel thiazolo[4,5-d]pyrim- idine derivatives. The target compounds 3a-h were synthesized by cyclocondensation of 4-amino-N'-(phenyl- methylidene)-3-phenyl-2-thioxo-2,3-dihydrothiazole-5-carbohydrazides 2a-d with aromatic aldehydes. The structures of new compounds were determined by IR, ¹H-NMR and elemental analysis. Thiaz...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Chemical and Pharmaceutical Bulletin
سال: 1958
ISSN: 0009-2363,1347-5223
DOI: 10.1248/cpb.6.343