共 50 条
- [31] Synthesis of new pyrimido[4,5-d]pyrimidine derivatives from 5-acetyl-6-methyl-4-methylsulfanylpyrimidine-2(1H)-thiones and guanidine Russian Chemical Bulletin, 2014, 63 : 469 - 474
- [32] 7'-Amino-1'H-spiro[cycloheptane-1,2'pyrimido[4,5-d] pyrimidin]-4'(3'H)-one ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS, 2012, 68 : 02546 - +
- [34] RING TRANSFORMATION OF 4-AMINO-1H-1,5-BENZODIAZEPINE-3-CARBONITRILE .4. CONVERSION OF 4-AMINO-1H-1,5-BENZODIAZEPINE-3-CARBONITRILE TO PYRAZOLO[3,4-D]PYRIMIDINES, PYRIMIDO[1,6-A]BENZIMIDAZOLE, AND PYRAZOLO[3',4'-4,5]PYRIMIDO[1,6-A]BENZIMIDAZOLES JOURNAL OF HETEROCYCLIC CHEMISTRY, 1986, 23 (06) : 1829 - 1831
- [36] Synthesis of Ethyl Pyrimidine-4-carboxylates from Unsymmetrical Enamino Diketones and Their Application in the First Synthesis of Pyrimido[4,5-d]pyridazin-8(7H)-ones SYNTHESIS-STUTTGART, 2008, (22): : 3639 - 3648
- [39] SYNTHESIS OF 5-AMINO-9-(BETA-D-RIBOFURANOSYL)-V-TRIAZINO[4,5-B]-PYRIMIDO[4,5-D]PYRROL-4-ONE AND UNUSUAL RING-OPENING OF THIS NEW RING-SYSTEM WITH THE VILSMEIER-HAACK REAGENT JOURNAL OF ORGANIC CHEMISTRY, 1980, 45 (12): : 2532 - 2535