Hydrochloric Acid → HCID 46893653, compound

HRID 1801965Notes

Reaction equation

HRID 1801965 reaction equation
[CH2:1]([C:3]1[NH:7][N:6]=[C:5]([NH:8][C:9]2[C:18]3[C:13](=[CH:14][CH:15]=[CH:16][CH:17]=3)[N:12]=[C:11]([C:19]([C:21]3[CH:26]=[CH:25][C:24]([F:27])=[CH:23][CH:22]=3)=[O:20])[N:10]=2)[CH:4]=1)[CH3:2].[BH4-].[Na+].Cl>CO.C1COCC1>[CH2:1]([C:3]1[NH:7][N:6]=[C:5]([NH:8][C:9]2[C:18]3[C:13](=[CH:14][CH:15]=[CH:16][CH:17]=3)[N:12]=[C:11]([CH:19]([C:21]3[CH:22]=[CH:23][C:24]([F:27])=[CH:25][CH:26]=3)[OH:20])[N:10]=2)[CH:4]=1)[CH3:2]

Participants

5

Reactant 3

HCID 313Hydrochloric AcidHCID 4311764Sodium borohydrideHCID 66613800HCID 66613800, compound

Product 1

HCID 46893653HCID 46893653, compoundYield 6.9%

Reagents, catalysts & solvents 1

HCID 21899815MeOH tetrahydrofuranSolvent

Procedure

To crude (4-(5-ethyl-1H-pyrazol-3-ylamino)quinazolin-2-yl)(4-fluorophenyl)methanone (104 mg, 0.28 mmol) in 1:1 MeOH/THF (4 mL) at rt was added sodium borohydride (22 mg, 0.57 mmol), and the solution was stirred for 30 min, after which 4N HCl (0.1 mL) was added. The mixture was concentrated to dryness, and the residue was purified by preparative HPLC (Varian diphenyl reverse phase column, eluting with a gradient of solvent B=0.05% HOAc/ACN and solvent A=0.05% HOAc/H2O) to afford (4-(5-ethyl-1H-pyrazol-3-ylamino)quinazolin-2-yl)(4-fluorophenyl)methanol (7 mg). 1H NMR (300 MHz, DMSO-d6) δ 1.24 (t, 3H) 2.62 (q, 2H) 5.67 (m, 1H) 5.83 (s, 1H) 6.45 (s, 1H) 7.13 (t, 2H) 7.53-7.57 (m, 3H) 7.81 (s, 2H) 8.59 (d, 1H) 10.42 (bs, 1H) 12.15 (bs, 1H); LC-MS (ESI) m/z 364 (M+H)+.

Workup

  1. concentrationThe mixture was concentrated to dryness
  2. customthe residue was purified by preparative HPLC (Varian diphenyl reverse phase column
  3. washeluting with a gradient of solvent B=0.05% HOAc/ACN and solvent A=0.05% HOAc/H2O)

Sources & evidence

ORD record
ord-4c7ea55b46a54c86903fc4960155b6fa
Source dataset
uspto-grants-2013_01
Patent number
US08349851B2

Reaction notes

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