Triethylamine → HCID 2057052, compound

HRID 1505916Notes

Reaction equation

HRID 1505916 reaction equation
[Br:1][C:2]1[CH:9]=[CH:8][C:5]([CH2:6]Br)=[CH:4][CH:3]=1.C(N(CC)CC)C.C[C@@:18]1([OH:24])[CH2:23][CH2:22][CH2:21][NH:20][CH2:19]1>C1COCC1>[Br:1][C:2]1[CH:9]=[CH:8][C:5]([CH2:6][N:20]2[CH2:21][CH2:22][CH2:23][C@@H:18]([OH:24])[CH2:19]2)=[CH:4][CH:3]=1

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 685274-Bromobenzyl bromideHCID 28064081HCID 28064081, compound

Product 1

HCID 2057052HCID 2057052, compoundYield 69.4%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

A mixture of 4-bromobenzyl bromide (1.0 g, 4.0 mmol), triethylamine (0.84 mL, 6.0 mmol) and (R)-3-methyl-piperidin-3-ol (1.11 g, 8.0 mmol) in THF (20 mL) was stirred at ambient temperature for 16 h. The solvent was evaporated and the resultant residue diluted with saturated aqueous sodium bicarbonate solution and extracted with ethyl acetate (2×50 mL). The combined organic layer was dried over sodium sulfate, filtered and evaporated. The material was purified by flash chromatography (silica, Biotage 50 g column, 50-100% ethyl acetate in cyclohexane) to afford the title compound (0.75 g, 69%). 1H NMR (CDCl3, 300 MHz): 7.46-7.40 (m, 2H), 7.21-7.14 (m, 2,H), 3.85-3.76 (m, 1H), 3.45 (s, 2H), 2.45 (s, 3H), 2.29-2.16 (m, 1H), 1.86-1.70 (m, 1H) 1.67-1.45 (m, 3H) plus 1 exchangeable not observed. LCMS (Method G): RT=2.00 min, M+H+=270.

Workup

  1. customThe solvent was evaporated
  2. additionthe resultant residue diluted with saturated aqueous sodium bicarbonate solution
  3. extractionextracted with ethyl acetate (2×50 mL)
  4. dry with materialThe combined organic layer was dried over sodium sulfate
  5. filtrationfiltered
  6. customevaporated
  7. customThe material was purified by flash chromatography (silica, Biotage 50 g column, 50-100% ethyl acetate in cyclohexane)

Sources & evidence

ORD record
ord-53f4a50d271348d3b98226934f51736a
Source dataset
uspto-grants-2015_12
Patent number
US09216980B2

Reaction notes

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