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- [29] STUDIES ON FAT NUCLEOSIDES AND NUCLEOTIDES, CONTINUED - SYNTHETIC, STRUCTURAL, AND CONFORMATIONAL INVESTIGATIONS OF SEVERAL RING EXPANDED XANTHINE, XANTHOSINE, AND XANTHYLIC ACID ANALOGS, CONTAINING THE NOVEL IMIDAZO[4,5-E][1,4]DIAZEPINE AND IMIDAZO[4,5-D][1,3]DIAZEPINE RING-SYSTEMS ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1990, 200 : 43 - ORGN
- [30] FAT NUCLEOSIDES AND NUCLEOTIDES, CONTINUED - SYNTHESIS OF 5/8-FUSED HETEROCYCLES CONTAINING THE IMIDAZO[4,5-E][1,2,4] TRIAZOCINE RING-SYSTEM ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1992, 204 : 148 - ORGN