Diisopropylethylamine → HCID 46884062, compound

HRID 746627Notes

Reaction equation

HRID 746627 reaction equation
[CH3:1][N:2](C)[CH2:3][CH2:4][C:5]1[S:9][C:8]2[CH:10]=[CH:11][CH:12]=[CH:13][C:7]=2[C:6]=1[C@H:14]([C:16]1[CH:21]=[CH:20][CH:19]=[CH:18][N:17]=1)[CH3:15].CCN(C(C)C)C(C)C.ClC(OC(Cl)C)=O>ClCCl>[CH3:1][NH:2][CH2:3][CH2:4][C:5]1[S:9][C:8]2[CH:10]=[CH:11][CH:12]=[CH:13][C:7]=2[C:6]=1[C@H:14]([C:16]1[CH:21]=[CH:20][CH:19]=[CH:18][N:17]=1)[CH3:15]

Participants

5

Reactant 3

HCID 81531DiisopropylethylamineHCID 5213051-Chloroethyl chloroformateHCID 11580427N,N-dimethyl-2-[3-[(1R)-1-pyridin-2-ylethyl]-1-benzothiophen-2-yl]ethanamine2×

Product 1

HCID 46884062HCID 46884062, compound

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Conditions

Temperature
40 °C

Procedure

To a solution of dimethyl-{2-[3-((R)-1-pyridin-2-yl-ethyl)-benzo[b]thiophen-2-yl]-ethyl}-amine (Compound 12-2) (0.305 mg, 0.98 mmol) in dichloromethane (3 mL), DIEA (1 mL, 5.8 mmol) and 1-chloroethyl chloroformate (0.32 mL, 2.95 mmol) were added. The mixture was stirred for 1 hour at 40° C. The solvent was removed in vacuo and 1N HCl was added to the residue. The mixture was stirred at 40° C. for an additional hour and cooled to ambient temperature. After neutralization with NH4OH the product was extracted with dichloromethane. The organic layer was dried (MgSO4), filtered and concentrated in vacuo to give 300 mg of crude product, which was purified by mass triggered HPLC to give methyl-{2-[3-((R)-1-pyridin-2-yl-ethyl)-benzo[b]thiophen-2-yl]-ethyl}-amine (Compound 21-1). (MH+=297, tR=1.675, Method 4)

Workup

  1. customThe solvent was removed in vacuo and 1N HCl
  2. additionwas added to the residue
  3. stirringThe mixture was stirred at 40° C. for an additional hour
  4. temperaturecooled to ambient temperature
  5. extractionAfter neutralization with NH4OH the product was extracted with dichloromethane
  6. dry with materialThe organic layer was dried (MgSO4)
  7. filtrationfiltered
  8. concentrationconcentrated in vacuo
  9. customto give 300 mg of crude product, which
  10. customwas purified by mass

Sources & evidence

ORD record
ord-84710da531fa4b7ab1c578e6d9cf5c43
Source dataset
uspto-grants-2008_07
Patent number
US07393865B2

Reaction notes

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