5454-50-2Relevant articles and documents
Design, Synthesis, and Anticancer Activity of Novel Fused Purine Analogues
Hassan,Sarg,Bayoumi,Kalaf
, p. 3458 - 3470 (2017/11/21)
6-Mercaptopurine has been utilized for the synthesis of various fused purine analogues through different chemical reactions to yield [1,4]thiazino[4,3,2-gh]purines 2, 3, 10a,b, 14, (8-oxo-[1,4]thiazino[4,3,2-gh]purin-7(8H)-ylidene) acetate 4, [1,4]thiazepino[4,3,2-gh]purine 6, thiazolo[3,4,5-gh]purine 7, imidazo[1,5,4-gh]purin-5-amine 8, 5-methylimidazo[1,5,4-gh]purine 9, [1,2,4]triazino[4,3-i]purines 16, 18, 21, [1,2,4]triazino[4,5,6-gh]purine 20, 5-methyl-2-(7H-purin-6-yl)-1H-pyrazol-3(2H)-one 22, [1,2,4]triazolo[4,3-i]purine 23, [1,2,5]triazepino[5,4,3-gh]purine 24, and ethyl 6-(2-(ethoxycarbonyl)hydrazinyl)-9H-purine-9-carboxylate 26. Seventeen of the newly synthesized compounds were selected by the NCI, Maryland, USA, and were tested for their anticancer activity in an initial single high dose in the full NCI 60 cell line panel among which [1,4]thiazino[4,3,2-gh]purine-7,8-dione 2, 7-benzyl-[1,4]thiazino[4,3,2-gh]purine 10b, and 3-(2,4-dimethoxyphenyl)-7H-[1,2,4]triazolo[4,3-i]purine 23 were found to possess very potent anticancer activity against most of the cancer cell lines.
Some cyclization reactions of 6-mercaptopurine with expected biological activity
Hassan
experimental part, p. 689 - 698 (2010/10/03)
The reaction of 6-mercaptopurine 1 with aromatic ketones 2a-h using the acidified acetic acid method afforded the S-acetyl derivatives 3a-h in good yields. While, the cyclized product 4i was obtained directly upon reaction of 1 with 9-acetyl anthracene. Compounds 3a-h were cyclized directly to the corresponding 1,4-thiazino[2,3,4-bc]purine derivatives (4a-h). In the same manner the reaction of 1 with aliphatic, aromatic, alicyclic ketones, α-tetralone and 1-methyl-4-piperidone gave compounds 6, 7, 8, 9a,b, 11 and 12. The cyclized compounds 10a,b were obtained by cyclization of 9a,b. The synthesized compounds were screened for their in vitro antitumor activity at National Cancer Institute.
SYNTHESIS AND SOME PROPERTIES OF 6-β-OXOALKYL(ARALKYL, HETARALKYL, CYCLOALKYL)THIOPURINES
Kochergin, P. M.,Gromov, M. Yu.,Aleksandrova, E. V.,Skachilova, S. Ya.
, p. 1335 - 1339 (2007/10/02)
The reaction of 6-purinethione with α-haloketones has given a series of new 6-β-oxoalkyl(aralkyl, hetaralkyl, cycloalkyl)thiopurines.Their alkylation in position 9 and acid hydrolysis to hypoxanthine and its 9-alkyl derivatives has been studied.The hydrolysis of the acetals of 6-formylmethylthiopurine and the oxidation of 6-(2,3-dihydroxypropyl)thiopurine leads to 6-formylmethylthiopurine, which shows a ring-chain tautomerism and exists in the form of 7-hydroxy-7,8-dihydrothiazolopurine.
On the Tautomerism of 2-Phenacyl-4-pyrimidinones and Related Compounds
Elguero, Jose,Goya, Pilar,Martinez, Ana,Rozas, Isabel
, p. 919 - 924 (2007/10/02)
3-Methyl-2-phenacyl-4-pyrimidinones 1, 2 have been synthesized using the sulfide contraction.According to the NMR data, the compounds 1, 2 exist exclusively as the benzoylmethylene tautomers a both in solution and in the solid state.AM1 calculations of the parent system are in agreement with the experimental observations.The study of the tautomeric equilibrium by this semiempirical method has been extended to other cases of enaminoketone/enolimine tautomerism. - Key Words: Pyrimidinones / Tautomerism / AM1 calculations