C - Chemistry – Metallurgy – 07 – H
Patent
C - Chemistry, Metallurgy
07
H
260/229.8
C07H 19/04 (2006.01) C07D 233/88 (2006.01) C07D 233/91 (2006.01) C07D 233/92 (2006.01) C07D 487/04 (2006.01) C07H 19/052 (2006.01)
Patent
CA 1109465
Abstract of the Disclosure 2-Amino-1-(5-amino-1H-imidazol-4-yl)ethanone, 6,7- dihytroimidazo[4,5-d][1,3]diazepin-8(3H)-one and acid-addition salts thereof are disclosed. 2-Amino-1-(5-amino-1H-imidazol- 4-yl)ethanone and its acid-addition salts are prepared by catalytically reducing an acid-addition salt of 2-amino-1-[5- amino-1-(protected)-1H-imidazol-4-yl]ethanone. 6,7-Dihydro- imidazo[4,5-d][1,3]diazepin-8(3H)-one and its acid-addition salts are prepared by reacting an acid-addition salt of 2- amino-1-(5-amino-1H-imidazol-4-yl)ethanone with a compound able to contribute a formyl group. The later product may subsequently be converted into (R)-3-(2-deoxy-.beta.-D-erythro- pentofuranosyl)-3,6,7,8-tetrahydroimidazo[4,5-d][1,3]diazepin- 8-ol. Furanose derivatives of 6,7-dihydroimidazo[4,5-d][1,3]- diazepine are also disclosed and their methods of preparation Lastly, a method for resolvlng an isomer mixture of 3-(2- deoxy-.beta.-D-erythro-pentofuranosyl)-3,6,7,8-tetrahydroimidazo- [4,5-d][1,3]diazepin-8-ol compounds is related. -1-
309121
Baker David C.
Putt Sterling R.
Macrae & Co.
Warner-Lambert Company
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