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- [3] HETEROCYCLIC STUDIES .34. SOME 5H-PYRIMIDO[4,5-B][1,4]THIAZINE-6(7H)-ONES,5H-PYRIMIDO[4,5-B][1,4]THIAZINE-4,6(3H,7H)-DIONES AND 5H-PYRIMIDO[4,5-B][1,4]THIAZINE-2,4,6(1H,3H,7H)-TRIONES JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 1, 1974, (15): : 1814 - 1818
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- [8] PYRIMIDO[4,5-C]PYRIDAZINES .6. PYRIMIDO[4,5-C]PYRIDAZINES AND 1,2,4-TRIAZINES FROM REACTIONS BETWEEN 6-HYDRAZINOPYRIMIDIN-4(3H)-ONES AND VICINAL DICARBONYL REAGENTS JOURNAL OF ORGANIC CHEMISTRY, 1985, 50 (03): : 346 - 350
- [9] 5H-PYRIMIDO[4,5-B][1,4]THIAZIN-6[7H)-1 . PRODUCT OF A NOVEL CYCLIZATION REACTION JOURNAL OF ORGANIC CHEMISTRY, 1965, 30 (04): : 1247 - &