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Acetic Acid → benzyl 3-(3-((((3aR,4R,6R,6aR)-6-(4-((2,4-dimethoxybenzyl)amino)-7H-pyrrolo[2,3-d]pyrimidin-7-yl)-2,2-dimethyltetrahydrofuro[3,4-d][1,3]dioxol-4-yl)methyl)amino)cyclobutyl)propanoate

HRID 2040730
Notes
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Reaction equation

HRID 2040730 reaction equation
[NH2:1][CH2:2][C@@H:3]1[C@H:7]2[O:8][C:9]([CH3:12])([CH3:11])[O:10][C@H:6]2[C@H:5]([N:13]2[C:17]3[N:18]=[CH:19][N:20]=[C:21]([NH:22][CH2:23][C:24]4[CH:29]=[CH:28][C:27]([O:30][CH3:31])=[CH:26][C:25]=4[O:32][CH3:33])[C:16]=3[CH:15]=[CH:14]2)[O:4]1.O=[C:35]1[CH2:38][CH:37]([CH2:39][CH2:40][C:41]([O:43][CH2:44][C:45]2[CH:50]=[CH:49][CH:48]=[CH:47][CH:46]=2)=[O:42])[CH2:36]1.CC(O)=O.[BH-](OC(C)=O)(OC(C)=O)OC(C)=O.[Na+].C([O-])(O)=O.[Na+]>ClCCCl>[CH3:33][O:32][C:25]1[CH:26]=[C:27]([O:30][CH3:31])[CH:28]=[CH:29][C:24]=1[CH2:23][NH:22][C:21]1[C:16]2[CH:15]=[CH:14][N:13]([C@H:5]3[C@@H:6]4[O:10][C:9]([CH3:12])([CH3:11])[O:8][C@@H:7]4[C@@H:3]([CH2:2][NH:1][CH:35]4[CH2:38][CH:37]([CH2:39][CH2:40][C:41]([O:43][CH2:44][C:45]5[CH:46]=[CH:47][CH:48]=[CH:49][CH:50]=5)=[O:42])[CH2:36]4)[O:4]3)[C:17]=2[N:18]=[CH:19][N:20]=1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

7

Reactant 5

HCID 176Acetic AcidHCID 516892Sodium BicarbonateHCID 5049666Sodium triacetoxyborohydrideHCID 677747277-((3aR,4R,6R,6aR)-6-(aminomethyl)-2,2-dimethyltetrahydrofuro[3,4-d][1,3]dioxol-4-yl)-N-(2,4-dimethoxybenzyl)-7H-pyrrolo[2,3-d]pyrimidin-4-amineHCID 67774851Benzyl 3-(3-oxocyclobutyl)propanoate

Product 1

HCID 67776180
benzyl 3-(3-((((3aR,4R,6R,6aR)-6-(4-((2,4-dimethoxybenzyl)amino)-7H-pyrrolo[2,3-d]pyrimidin-7-yl)-2,2-dimethyltetrahydrofuro[3,4-d][1,3]dioxol-4-yl)methyl)amino)cyclobutyl)propanoate
Yield 64%

Reagents, catalysts & solvents 1

HCID 111,2-DichloroethaneSolvent

Procedure

To a solution of 7-((3aR,4R,6R,6aR)-6-(aminomethyl)-2,2-dimethyltetrahydrofuro[3,4-d][1,3]dioxol-4-yl)-N-(2,4-dimethoxybenzyl)-7H-pyrrolo[2,3-d]pyrimidin-4-amine (2.5 g, 5.49 mmol), benzyl 3-(3-oxocyclobutyl)propanoate (1.66 g, 7.14 mmol) and HOAc (329 mg, 5.49 mmol) in DCE (40 mL) was added NaB(OAc)3H (2.33 g, 11 mmol) in one portion. Then the resulting reaction mixture was stirred at rt overnight. Saturated aqueous NaHCO3 (40 mL) was added to quench the reaction, then was extracted with DCM (50 mL×3), dried over anhydrous Na2SO4 and concentrated. The crude was purified by SGC (DCM:MeOH=100:1 to 50:1) to afford the desired compound (2.3 g, yield: 64%) as a white solid. 1H NMR (500 MHz, MeOD): δH 8.14 (d, J=2.5 Hz, 1H), 7.35-7.28 (m, 5H), 7.20 (d, J=4.0 Hz, 1H), 7.13 (d, J=8.0 Hz, 1H), 6.64 (d, J=3.0 Hz, 1H), 6.53 (d, J=2.0 Hz, 1H), 6.42 (d, J=8.5 Hz, 1H), 6.18 (d, J=2.5 Hz, 1H), 5.40-5.39 (m, 1H), 5.08-5.07 (m, 2H), 4.96-4.94 (m, 1H), 4.64 (s, 2H), 4.26-4.24 (m, 1H), 3.82 (s, 3H), 3.75 (s, 3H), 3.10-3.05 (m, 0.55H), 2.86-2.82 (m, 2H), 2.26-2.20 (m, 3H), 2.10-1.59 (m, 5H), 1.58 (s, 3H), 1.37 (s, 3H), 1.35-1.25 (m, 0.6H), 1.15-1.08 (m, 0.5H) ppm; LC-MS (m/z): 672.4 [M+1]+.

Workup

  1. customThen the resulting reaction mixture
  2. customto quench
  3. customthe reaction
  4. extractionwas extracted with DCM (50 mL×3)
  5. dry with materialdried over anhydrous Na2SO4
  6. concentrationconcentrated
  7. customThe crude was purified by SGC (DCM:MeOH=100:1 to 50:1)

Sources & evidence

ORD record
ord-59beabd20b194d9dbcd2c380be4731c0
Source dataset
uspto-grants-2013_11
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08580762B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes