3-Methylbutanal → HCID 11190455, compound

HRID 1174727Notes

Reaction equation

HRID 1174727 reaction equation
[CH3:1][S:2]([C:5]1[CH:10]=[CH:9][C:8]([NH:11][C:12]2[C:17]([N+:18]([O-:20])=[O:19])=[C:16]([O:21][CH:22]3[CH2:27][CH2:26][NH:25][CH2:24][CH2:23]3)[N:15]=[CH:14][N:13]=2)=[CH:7][CH:6]=1)(=[O:4])=[O:3].[CH3:28][CH:29]([CH3:33])[CH2:30][CH:31]=O.[BH4-].[Na+]>CO>[CH3:1][S:2]([C:5]1[CH:10]=[CH:9][C:8]([NH:11][C:12]2[C:17]([N+:18]([O-:20])=[O:19])=[C:16]([O:21][CH:22]3[CH2:27][CH2:26][N:25]([CH2:31][CH2:30][CH:29]([CH3:33])[CH3:28])[CH2:24][CH2:23]3)[N:15]=[CH:14][N:13]=2)=[CH:7][CH:6]=1)(=[O:4])=[O:3]

Participants

5

Reactant 3

HCID 115523-MethylbutanalHCID 4311764Sodium borohydride2×HCID 11257886(4-Methanesulfonyl-phenyl)-[5-nitro-6-(piperidin-4-yloxy)-pyrimidin-4-yl]-amine

Product 1

HCID 11190455HCID 11190455, compoundYield 36%

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

Compound A2 (0.15 mmol, 60 mg), and 3-methyl-butyraldehyde (0.15 mmol, 13 mg) were dissolved in methanol (2 mL) and stirred for 5 minutes at room temperature. Then, sodium borohydride (0.18 mmol, 6.3 mg) was added at 0° C. The reaction was complete immediately upon addition of sodium borohydride. The mixture was quenched with saturated ammonium chloride solution (1 mL) followed by an extraction with dichloromethane. Removal of organic solvent in vacuo and purification by HPLC provided Compound A8 as a yellow solid (25 mg, 36%). 1H NMR (400 MHz, CDCl3) δ (ppm): 10.17 (s, 1H), 8.35 (s, 1H), 7.90 (d, 2H), 7.80 (d, 2H), 5.72 (s broad, 1H), 3.65 (m, 2H), 3.11 (m, 2H), 2.96 (m, 5H), 2.40 (m, 2H), 2.15 (m, 2H), 1.60 (m, 3H), 0.85 (d, 6H). LCMS (ESI), m/z 464.4 (M+H+, 100%).

Workup

  1. customThe mixture was quenched with saturated ammonium chloride solution (1 mL)
  2. extractionfollowed by an extraction with dichloromethane
  3. customRemoval of organic solvent
  4. customin vacuo and purification by HPLC

Sources & evidence

ORD record
ord-1ac15d343190401791ce0920d919636a
Source dataset
uspto-grants-2010_11
Patent number
US07838525B2

Reaction notes

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