Triethylamine → (2-(3-(2-Hydroxyethyl)benzyl)-5-oxa-2,8-diazaspiro[3.5]nonan-8-yl)(5-methylthiophen-2-yl)methanone

HRID 471043Notes

Reaction equation

HRID 471043 reaction equation
Br[CH2:2][C:3]1[CH:4]=[C:5]([CH2:9][CH2:10][OH:11])[CH:6]=[CH:7][CH:8]=1.Cl.[CH3:13][C:14]1[S:18][C:17]([C:19]([N:21]2[CH2:29][C:25]3([CH2:28][NH:27][CH2:26]3)[O:24][CH2:23][CH2:22]2)=[O:20])=[CH:16][CH:15]=1.C(N(CC)CC)C>C(#N)C>[OH:11][CH2:10][CH2:9][C:5]1[CH:4]=[C:3]([CH:8]=[CH:7][CH:6]=1)[CH2:2][N:27]1[CH2:26][C:25]2([CH2:29][N:21]([C:19]([C:17]3[S:18][C:14]([CH3:13])=[CH:15][CH:16]=3)=[O:20])[CH2:22][CH2:23][O:24]2)[CH2:28]1

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 18999576Benzeneethanol, 3-(bromomethyl)-HCID 67292541(5-Methylthiophen-2-yl)(5-oxa-2,8-diazaspiro[3.5]nonan-8-yl)methanone hydrochloride

Product 1

HCID 57989289(2-(3-(2-Hydroxyethyl)benzyl)-5-oxa-2,8-diazaspiro[3.5]nonan-8-yl)(5-methylthiophen-2-yl)methanone

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Procedure

2-(3-(Bromomethyl)phenyl)ethanol (example 6, step a) (0.281 g) was added to a solution of (5-methylthiophen-2-yl)(5-oxa-2,8-diazaspiro[3.5]nonan-8-yl)methanone hydrochloride (example 33, step h) (0.29 g) and triethylamine (0.42 mL) in acetonitrile (15 mL) at 20° C. and the resultant mixture stirred for 3 hours at 20° C. The solvent was removed under reduced pressure and the residue partitioned between ethyl acetate and brine. The organic layer was dried over sodium sulphate, filtered and the solvent removed under reduced pressure. The crude product was purified by flash silica chromatography using 3% methanol in dichloromethane with 1% triethylamine as solvent. Pure fractions were evaporated to dryness to afford the subtitled compound. Yield 0.32 g.

Workup

  1. customThe solvent was removed under reduced pressure
  2. customthe residue partitioned between ethyl acetate and brine
  3. dry with materialThe organic layer was dried over sodium sulphate
  4. filtrationfiltered
  5. customthe solvent removed under reduced pressure
  6. customThe crude product was purified by flash silica chromatography
  7. customPure fractions were evaporated to dryness

Sources & evidence

ORD record
ord-c696b522d52d402c8588da8404308251
Source dataset
uspto-grants-2014_01
Patent number
US08629271B2

Reaction notes

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