tert-Butyl carbamate → N-{(1S,2R,3S,4R)-4-[2-((R)-3-Amino-pyrrolidin-1-yl)-6-(2,2-diphenyl-ethylamino)-purin-9-yl]-2,3-dihydroxy-cyclopentyl}-3-hydroxy-propionamide
Reaction equation
[NH2:1][C@@H:2]1[CH2:6][CH2:5][N:4]([C:7]2[N:15]=[C:14]3[C:10]([N:11]=[CH:12][N:13]3[C@@H:16]3[CH2:20][C@H:19]([NH:21][C:22](=[O:33])[C@H](OCC4C=CC=CC=4)C)[C@@H:18]([OH:34])[C@H:17]3[OH:35])=[C:9]([NH:36][CH2:37][CH:38]([C:45]3[CH:50]=[CH:49][CH:48]=[CH:47][CH:46]=3)[C:39]3[CH:44]=[CH:43][CH:42]=[CH:41][CH:40]=3)[N:8]=2)[CH2:3]1.[C:51]([O:55]C(=O)N)(C)(C)[CH3:52]>>[NH2:1][C@@H:2]1[CH2:6][CH2:5][N:4]([C:7]2[N:15]=[C:14]3[C:10]([N:11]=[CH:12][N:13]3[C@@H:16]3[CH2:20][C@H:19]([NH:21][C:22](=[O:33])[CH2:52][CH2:51][OH:55])[C@@H:18]([OH:34])[C@H:17]3[OH:35])=[C:9]([NH:36][CH2:37][CH:38]([C:39]3[CH:40]=[CH:41][CH:42]=[CH:43][CH:44]=3)[C:45]3[CH:50]=[CH:49][CH:48]=[CH:47][CH:46]=3)[N:8]=2)[CH2:3]1Participants
3
Reactant 2
Product 1
Procedure
The title compound is prepared analogously to (R)-N-{(1S,2R,3S,4R)-4-[2-((R)-3-amino-pyrrolidin-1-yl)-6-(2,2-diphenyl-ethylamino)-purin-9-yl]-2,3-dihydroxy-cyclopentyl}-2-benzyloxy-propionamide (Example 181, step 4), by substituting {(R)-1-[9-[(1R,2S,3R,4S)-4-(3-tert-butoxy-propionylamino)-2,3-dihydroxy-cyclopentyl]-6-(2,2-diphenyl-ethylamino)-9H-purin-2-yl]-pyrrolidin-3-yl}-carbamic acid tert-butyl ester (Intermediate ZG3) for {(R)-1-[9-[(1R,2S,3R,4S)-4-(R)-2-Benzyloxy-propionylamino)-2,3-dihydroxy-cyclopentyl]-6-(2,2-diphenyl-ethylamino)-9H-purin-2-yl]-pyrrolidin-3-yl}-carbamic acid tert-butyl ester (Example 181, step 3).
Sources & evidence
- ORD record
- ord-47fce5988f054b73976ff55cd37b8254
- Source dataset
- uspto-grants-2012_11
- Patent number
- US08318750B2
Reaction notes
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