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- [3] ANTITUMOR ACTIVITY OF SOME NEW 1,3,8-TRISUBSTITUTED PURINE-2,6-DIONES AND 1,3,6-TRISUBSTITUTED THIAZOLO[2,3-f]PURINE-2,4-DIONES BULLETIN OF PHARMACEUTICAL SCIENCES, 2008, 31 : 391 - 399
- [4] CONDENSED PURINES .1. SYNTHESIS OF 6,7-DIHYDRO-1,3-DIMETHYLPYRIMIDO[2,1-F]PURINE-2,4,8(1H,3H,9H)-TRIONES LIEBIGS ANNALEN DER CHEMIE, 1989, (12): : 1251 - 1254
- [5] SEARCH FOR NEW DRUGS IN GROUP OF XANTHINE DERIVATIVES .38. 1,3-DIMETHYL-8-ALKYL-6H,7H,10H-(1,2,4)-TRIAZEPINO[4,3-F]PURINE-2,4-(1H,3H)-DIONES AND THEIR DERIVATIVES FARMACO-EDIZIONE SCIENTIFICA, 1975, 30 (02): : 122 - 127