Formaldehyde → HCID 118522403, compound

HRID 529852Notes

Reaction equation

HRID 529852 reaction equation
[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([O:38][CH:39]([F:41])[F:40])=[C:6]([C:8]2[C:12]([NH:13][C:14]([C:16]3[CH:17]=[N:18][N:19]4[CH:24]=[CH:23][CH:22]=[N:21][C:20]=34)=[O:15])=[CH:11][N:10]([CH2:25][CH:26]=[C:27]3[CH2:32][CH2:31][CH:30]([NH:33][CH2:34][CH2:35][C:36]#[N:37])[CH2:29][CH2:28]3)[N:9]=2)[CH:7]=1.C=O.[BH3-][C:45]#N.[Na+]>CO>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([O:38][CH:39]([F:41])[F:40])=[C:6]([C:8]2[C:12]([NH:13][C:14]([C:16]3[CH:17]=[N:18][N:19]4[CH:24]=[CH:23][CH:22]=[N:21][C:20]=34)=[O:15])=[CH:11][N:10]([CH2:25][CH:26]=[C:27]3[CH2:32][CH2:31][CH:30]([N:33]([CH2:34][CH2:35][C:36]#[N:37])[CH3:45])[CH2:29][CH2:28]3)[N:9]=2)[CH:7]=1

Participants

5

Reactant 3

HCID 712FormaldehydeHCID 5003444Sodium cyanoborohydrideHCID 118522810HCID 118522810, compound

Product 1

HCID 118522403HCID 118522403, compound

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

To a solution of N-[3-[5-chloro-2-(difluoromethoxy)phenyl]-1-(2-[4-[(2-cyanoethyl)amino]cyclohexylidene]ethyl)-1H-pyrazol-4-yl]pyrazolo[1,5-a]pyrimidine-3-carboxamide (140.0 mg, 0.241 mmol) in methanol (20 mL) was added 40% HCHO aqueous solution (75 mg, 0.96 mmol). The resulting solution was stirred at room temperature overnight. Then NaBH3CN (15.14 mg, 0.241 mmol) was added. The resulting solution was stirred at room temperature for 4 h and concentrated under vacuum. The residue was purified by flash chromatography on silica gel eluting with dichloromethane/MeOH (10/1). This resulted in 34.7 mg (24%) of N-[3-[5-chloro-2-(difluoromethoxy)phenyl]-1-(2-[4-[(2-cyano ethyl)(methyl)amino]cyclohexylidene]ethyl)-1H-pyrazol-4-yl]pyrazolo[1,5-a]pyrimidine-3-carboxamide as a light yellow solid. LCMS (Method 33) [M+H]+=595.4, RT=1.43 min. 1H NMR (300 MHz, DMSO-d6) δ: (ppm) 9.73 (s, 1H), 9.33 (dd, 1H, J=1.5, 6.9 Hz), 8.69-8.66 (m, 2H), 8.28 (s, 1H), 7.64-7.60 (m, 2H), 7.43 (d, 1H, J=8.4 Hz), 7.27 (dd, 1H, J=4.5, 7.5 Hz), 7.00 (t, 1H, J=73.5 Hz), 5.43 (t, 1H, J=7.2 Hz), 4.81 (d, 2H, J=6.9 Hz), 2.88-2.82 (m, 1H), 2.66-2.59 (m, 5H), 2.33-2.29 (m, 1H), 2.22 (s, 3H), 2.10-2.05 (m, 1H), 1.93-1.80 (m, 3H), 1.37-1.25 (m, 2H).

Workup

  1. stirringThe resulting solution was stirred at room temperature for 4 h
  2. concentrationconcentrated under vacuum
  3. customThe residue was purified by flash chromatography on silica gel eluting with dichloromethane/MeOH (10/1)
  4. customThis resulted in 34.7 mg (24%) of N-[3-[5-chloro-2-(difluoromethoxy)phenyl]-1-(2-[4-[(2-cyano ethyl)(methyl)amino]cyclohexylidene]ethyl)-1H-pyrazol-4-yl]pyrazolo[1,5-a]pyrimidine-3-carboxamide as a light yellow solid

Sources & evidence

ORD record
ord-db0b6aedf39a422297c75f8fba435f35
Source dataset
uspto-grants-2016_05
Patent number
US09346815B2

Reaction notes

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