Entecavir Intermediate

Kauj ruam 1:
3-Cyclopenten-1-ol, 2- [(phenylmethod) hlau] -, (1R trans) Kauj Ruam 2:
(1S, 2R, 3S, 5R) -2- (benzyloxymethyl) -6-oxabicyclo [3.1.0] hexan-3-ol Kauj Ruam 3:
Kauj Ruam 4:
(1S, 2S, 3S, 5S) -5- (2-amino-6- (benzyloxy) -9H purin-9-yl) -3- (benzyloxy) ) -2- (benzyloxy) cyclopentanol Kauj Ruam 5:
(2R, 3S, 5S) -3- (benzyloxy) -5- (6- (benzyloxy) -2- ((4-}methoxyphenyl) diphenylmethylamine) -9 H purin-9-yl) -2- (benzyloxymethyl) cyclopentanol Kauj Ruam 6:
(2R, 3S, 5S) -3- (benzyloxy) -5- (6- (benzyloxy) -2- (4-}methoxyphenyl)
Diphenylmethylamino) -9H purin-9-yl) -2- (benzoyloxymethyl) cyclopentanone Kauj Ruam 7:
6- (benzyloxy) -9- ((1S, 3R, 4S) -4- (benzyloxy) -3- (benzyloxy) -2
-Methylenecyclopentyl) - N - (4-methoxyphenyl) diphenylmethyl) -9H purin-2-amine Kauj Ruam 8:
Intermediate ntawm 6- (benzyloxy) -9- ((1S, 3R, 4S) -4- (benzyloxy) -3- (benzyloxy) -2- methylenecyclopentyl) {{8} }H purin-2-amine gadolinium diamine monohydrate aziridipine