Sodium triacetoxyborohydride → HCID 86648237, compound
Reaction equation
[Cl:1][C:2]1[N:10]=[C:9]2[C:5]([N:6]=[C:7]([CH:12]=O)[N:8]2[CH3:11])=[C:4]([N:14]2[CH2:19][CH2:18][O:17][CH2:16][CH2:15]2)[N:3]=1.[C@H:20]12[CH2:26][C@H:23]([NH:24][CH2:25]1)[CH2:22][N:21]2[C:27]([CH3:31])([CH3:30])[CH2:28][OH:29].C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+]>ClCCCl>[Cl:1][C:2]1[N:10]=[C:9]2[C:5]([N:6]=[C:7]([CH2:12][N:24]3[CH2:25][C@@H:20]4[CH2:26][C@H:23]3[CH2:22][N:21]4[C:27]([CH3:31])([CH3:30])[CH2:28][OH:29])[N:8]2[CH3:11])=[C:4]([N:14]2[CH2:19][CH2:18][O:17][CH2:16][CH2:15]2)[N:3]=1Participants
Procedure
A solution of 2-chloro-9-methyl-6-morpholin-4-yl-9H-purine-8-carbaldehyde (235 mg, 0.83 mmol), (2-(1S,4S)-2,5-diazabicyclo[2.2.1]hept-2-yl-2-methylpropan-1-ol (168 mg, 0.99 mmol) and molecular sieves (4 Å, powdered, 1 g) in DCE (10 mL) was stirred at ambient temperature for 4 h. Sodium triacetoxyborohydride (265 mg, 1.25 mmol) was added and the mixture stirred for 18 h, then loaded onto an Isolute® SCX-2 cartridge (25 g). The cartridge was then washed with methanol and the desired product was subsequently eluted using 2 M NH3 in MeOH. The product was collected and concentrated in vacuo. The resultant residue was purified by flash chromatography (Si—PPC, DCM:MeOH; 90:10) to afford the title compound as a tan solid (50 mg, 14%). LCMS (Method H): RT=2.39 min, M+H+=436.
Workup
- washThe cartridge was then washed with methanol
- washthe desired product was subsequently eluted
- customThe product was collected
- concentrationconcentrated in vacuo
- customThe resultant residue was purified by flash chromatography (Si—PPC, DCM:MeOH; 90:10)
Sources & evidence
- ORD record
- ord-2700b79e53044a0293272de5775f9334
- Source dataset
- uspto-grants-2012_05
- Patent number
- US08173650B2
Reaction notes
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