Imidazole → (2S)-(2R,3S,4R,5R)-2-((((((2R,3S,5R)-5-(4-amino-2-oxopyrimidin-1(2H)-yl)-2-((phosphonooxy)methyl)tetrahydrofuran-3-yl)oxy)(hydroxy)phosphoryl)oxy)methyl)-5-(6-amino-9H-purin-9-yl)-4-hydroxytetrahydrofuran-3-yl 2-methoxy-3-phenylpropanoate

HRID 1482191Notes

Reaction equation

HRID 1482191 reaction equation
[CH2:1]1[C@H:5]([N:6]2[C:11](=[O:12])[N:10]=[C:9]([NH2:13])[CH:8]=[CH:7]2)[O:4][C@H:3]([CH2:14][O:15][P:16]([OH:19])([OH:18])=[O:17])[C@H:2]1[O:20][P:21]([O:24][CH2:25][C@H:26]1[O:30][C@@H:29]([N:31]2[C:35]3[N:36]=[CH:37][N:38]=[C:39]([NH2:40])[C:34]=3[N:33]=[CH:32]2)[C@H:28]([OH:41])[C@@H:27]1[OH:42])([OH:23])=[O:22].[CH3:43][O:44][C@@H:45]([CH2:52][C:53]1[CH:58]=[CH:57][CH:56]=[CH:55][CH:54]=1)[C:46](OCC#N)=[O:47].N1C=CN=C1.C(O)(C(F)(F)F)=O>[Cl-].C[N+](C)(C)CCCCCCCCCCCCCCCC.O>[CH3:43][O:44][C@H:45]([CH2:52][C:53]1[CH:58]=[CH:57][CH:56]=[CH:55][CH:54]=1)[C:46]([O:42][C@H:27]1[C@@H:28]([OH:41])[C@H:29]([N:31]2[CH:32]=[N:33][C:34]3[C:35]2=[N:36][CH:37]=[N:38][C:39]=3[NH2:40])[O:30][C@H:26]1[CH2:25][O:24][P:21]([O:20][C@H:2]1[CH2:1][C@H:5]([N:6]2[CH:7]=[CH:8][C:9]([NH2:13])=[N:10][C:11]2=[O:12])[O:4][C@@H:3]1[CH2:14][O:15][P:16]([OH:18])([OH:19])=[O:17])([OH:23])=[O:22])=[O:47]

Participants

7

Reactant 4

HCID 795ImidazoleHCID 6422Trifluoroacetic acidHCID 1955115'-Phospho-2'-deoxyribocytidylylriboadenosine2×HCID 89668408(S)-cyanomethyl 2-methoxy-3-phenylpropanoate2×

Product 1

HCID 117741483(2S)-(2R,3S,4R,5R)-2-((((((2R,3S,5R)-5-(4-amino-2-oxopyrimidin-1(2H)-yl)-2-((phosphonooxy)methyl)tetrahydrofuran-3-yl)oxy)(hydroxy)phosphoryl)oxy)methyl)-5-(6-amino-9H-purin-9-yl)-4-hydroxytetrahydrofuran-3-yl 2-methoxy-3-phenylpropanoateYield 16.5%

Reagents, catalysts & solvents 2

HCID 8154Hexadecyltrimethylammonium chlorideCatalystHCID 962WaterSolvent

Procedure

((2R,3S,5R)-5-(4-Amino-2-oxopyrimidin-1(2H)-yl)-3-(((((2R,3S,4R,5R)-5-(6-amino-9H-purin-9-yl)-3,4-dihydroxytetrahydrofuran-2-yl)methoxy)(hydroxy)phosphoryl)oxy)tetrahydrofuran-2-yl)methyl dihydrogenphosphate (Compound 1h, 0.32 g, 0.50 mmol) and (S)-cyanomethyl 2-methoxy-3-phenylpropanoate (Compound 7b, 0.44 g, 2.01 mmol) were added to a solution of imidazole (3.40 g, 50.00 mmol) and N,N,N-trimethylhexadecan-1-aminium chloride (3.20 g, 10.00 mmol) dissolved in water (30 ml), and the mixture was stirred at room temperature for 30 minutes. TFA (1.0 ml) was added to the reaction solution, followed by concentration. The resulting residue was purified by preparative HPLC (0.05% aqueous TFA solution:acetonitrile=84:16→60:40) to afford the title compound (66 mg, 16%).

Workup

  1. concentrationfollowed by concentration
  2. customThe resulting residue was purified by preparative HPLC (0.05% aqueous TFA solution:acetonitrile=84:16→60:40)

Sources & evidence

ORD record
ord-e06a72f5ee824b188c7d9d3bb4c1a019
Source dataset
uspto-grants-2016_08
Patent number
US09409952B2

Reaction notes

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