Formaldehyde → 5-methyl-7-((1-methylpyrrolidin-2-yl)methyl)-3-(phenylamino)-2-(4-(pyridin-2-yl)benzyl)-2H-pyrazolo[3,4-d]pyrimidine-4,6(5H,7H)-dione

HRID 81416Notes

Reaction equation

HRID 81416 reaction equation
[CH3:1][N:2]1[C:7](=[O:8])[C:6]2=[C:9]([NH:25][C:26]3[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=3)[N:10]([CH2:12][C:13]3[CH:18]=[CH:17][C:16]([C:19]4[CH:24]=[CH:23][CH:22]=[CH:21][N:20]=4)=[CH:15][CH:14]=3)[N:11]=[C:5]2[N:4]([CH2:32][CH:33]2[CH2:37][CH2:36][CH2:35][NH:34]2)[C:3]1=[O:38].C=O.[BH3-][C:42]#N.[Na+]>CO>[CH3:1][N:2]1[C:7](=[O:8])[C:6]2=[C:9]([NH:25][C:26]3[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=3)[N:10]([CH2:12][C:13]3[CH:18]=[CH:17][C:16]([C:19]4[CH:24]=[CH:23][CH:22]=[CH:21][N:20]=4)=[CH:15][CH:14]=3)[N:11]=[C:5]2[N:4]([CH2:32][CH:33]2[CH2:37][CH2:36][CH2:35][N:34]2[CH3:42])[C:3]1=[O:38]

Participants

5

Reactant 3

HCID 712FormaldehydeHCID 5003444Sodium cyanoborohydrideHCID 426425785-methyl-3-(phenylamino)-2-(4-(pyridin-2-yl)benzyl)-7-(pyrrolidin-2-ylmethyl)-2H-pyrazolo[3,4-d]pyrimidine-4,6(5H,7H)-dione

Product 1

HCID 426425795-methyl-7-((1-methylpyrrolidin-2-yl)methyl)-3-(phenylamino)-2-(4-(pyridin-2-yl)benzyl)-2H-pyrazolo[3,4-d]pyrimidine-4,6(5H,7H)-dione

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent2×

Procedure

5-methyl-3-(phenylamino)-2-(4-(pyridin-2-yl)benzyl)-7-(pyrrolidin-2-ylmethyl)-2H-pyrazolo[3,4-d]pyrimidine-4,6(5H,7H)-dione is dissolved in CH3OH (200 μL), and then 37% formaldehyde (2.3 μL) is added at room temperature. After 5 min, NaBH3CN (1.8 mg, 0.028 mmol) in CH3OH (100 μL) is added. The reaction mixture is stirred at r.t. for 30 min. The mixture is purified by HPLC to give pure product as white solids. MS (ESI) m/z 522.3 [M+H]+.

Workup

  1. customThe mixture is purified by HPLC
  2. customto give pure product as white solids

Sources & evidence

ORD record
ord-787cb5e9678948418c936b964cb1467e
Source dataset
uspto-grants-2014_09
Patent number
US08846693B2

Reaction notes

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