NEW SYNTHESIS OF PURINES FROM THE REACTION OF 6-AMINO-1,3-DIMETHYL-5-NITROSOURACIL WITH BENZYLIDENETRIPHENYLPHOSPHORANESSENGA K; KANAZAWA H; NISHIGAKI S et al.1976; J. CHEM. SOC., CHEM. COMMUNIC.; G.B.; DA. 1976; NO 5; PP. 155-156; BIBL. 4 REF.Article

CONSTRUCTION OF PYRIMIDO (5,4-E)-AS-TRIAZINE, PURINE, V-TRIAZOLO (4,5-D) PYRIMIDINE AND PYRAZOLO-(3,4-D) PYRIMIDINE RING SYSTEMS FROM 5-ARYLAZO-6-ARYLIDENEHYDRAZINO-1,3-DIMETHYLURACILSNISHIGAKI S; ISHIBA M; FUKANI K et al.1982; J. HETEROCYCL. CHEM.; ISSN 0022-152X; USA; DA. 1982; VOL. 19; NO 4; PP. 769-773; BIBL. 15 REF.Article