Facile conversion of 4(5)-nitro-5(4)-methylimidazoles into 4(5)-nitro-5(4)-cyanoimidazoles
作者:Ramachandra S. Hosmane、Anila Bhan、Michael E. Rauser
DOI:10.1021/jo00350a099
日期:1985.12
Total synthesis of (8R)-3-(2-deoxy-.beta.-D-erythro-pentofuranosyl)-3,6,7,8-tetrahydroimidazo[4,5-d][1,3]diazepin-8-ol (pentostatin), the potent inhibitor of adenosine deaminase
作者:Eunice Chan、Sterling R. Putt、H. D. Hollis Showalter、David C. Baker
DOI:10.1021/jo00139a015
日期:1982.8
Imidazo[4,5-e][1,2,4]triazocine: A Novel 5:8-Fused Ring System Riddled With Rearrangements
作者:Ramachandra S. Hosmane、Friedrick N. Burnett
DOI:10.3987/com-97-7783
日期:——
Synthetic Approaches to 5:8-Fused Heterocyclic Systems. A Novel Rearrangement During the Synthesis of Imidazo[4,5-e][1,2,4]triazocine Ring System
作者:Friedrich Burnett、Ramachandra Hosmane
DOI:10.1080/15257779508012373
日期:1995.5.1
The attempted ring-closure of 4-amino-1-benzyl-5-[(N-2-benzyl-N-2-methoxycarbonyl)hydrazinomethylenecarbonyl]imidazole (5b) in sodium hydride/dimethyl sulfoxide at 50-60 degrees C afforded 1, 7-dibenzylxanthine (6) instead of the anticipated 5:8-fused heterocycle 4b. A tentative reaction pathway has been proposed for the observed transformation.
HOSMANE, RAMACHANDRA, S.;BHAN, A.;RAUSER, M. E., J. ORG. CHEM., 1985, 50, N 26, 5892-5895
作者:HOSMANE, RAMACHANDRA, S.、BHAN, A.、RAUSER, M. E.