Benzoyl chloride → N-benzoyl-N-[(2R)-2-(thiazol-5-ylmethoxycarbonylamino)-3-phenylpropyl]-N-[(2S)-2-(thiazol-5-ylmethoxycarbonylamino)-3-phenylpropyl]amine

HRID 402999Notes

Reaction equation

HRID 402999 reaction equation
[S:1]1[C:5]([CH2:6][O:7][C:8]([NH:10][C@H:11]([CH2:33][C:34]2[CH:39]=[CH:38][CH:37]=[CH:36][CH:35]=2)[CH2:12][NH:13][CH2:14][C@@H:15]([NH:23][C:24]([O:26][CH2:27][C:28]2[S:32][CH:31]=[N:30][CH:29]=2)=[O:25])[CH2:16][C:17]2[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=2)=[O:9])=[CH:4][N:3]=[CH:2]1.C(N(CC)CC)C.[C:47](Cl)(=[O:54])[C:48]1[CH:53]=[CH:52][CH:51]=[CH:50][CH:49]=1.C(OCC)(=O)C>ClCCCl>[C:47]([N:13]([CH2:14][C@H:15]([NH:23][C:24]([O:26][CH2:27][C:28]1[S:32][CH:31]=[N:30][CH:29]=1)=[O:25])[CH2:16][C:17]1[CH:18]=[CH:19][CH:20]=[CH:21][CH:22]=1)[CH2:12][C@@H:11]([NH:10][C:8]([O:7][CH2:6][C:5]1[S:1][CH:2]=[N:3][CH:4]=1)=[O:9])[CH2:33][C:34]1[CH:39]=[CH:38][CH:37]=[CH:36][CH:35]=1)(=[O:54])[C:48]1[CH:53]=[CH:52][CH:51]=[CH:50][CH:49]=1

Participants

6

Reactant 4

HCID 7412Benzoyl chlorideHCID 8471TriethylamineHCID 8857Ethyl AcetateHCID 60204702N-[(2R)-2-(thiazol-5-ylmethoxycarbonylamino)-3-phenylpropyl]-N-[(2S)-2-(thiazol-5-ylmethoxycarbonylamino)-3-phenylpropyl]amine

Product 1

HCID 11855512N-benzoyl-N-[(2R)-2-(thiazol-5-ylmethoxycarbonylamino)-3-phenylpropyl]-N-[(2S)-2-(thiazol-5-ylmethoxycarbonylamino)-3-phenylpropyl]amineYield 48.2%

Reagents, catalysts & solvents 1

HCID 111,2-DichloroethaneSolvent

Procedure

The product from Example 26D (50 mg, 0.088 mmol) in 1,2-dichloroethane (2 mL) was treated with triethylamine (14 μl, 0.097 mmol) and benzoyl chloride (10.3 μl, 0.088 mmol) at ambient temperature. After stirring for two hours, the mixture was treated with ethyl acetate (8 mL), wash with aqueous 10% NaHCO3 (2×10 mL), brine (10 mL), dried over sodium sulfate, filtered, and the filtrate was concentrated. The residue was purified on a silica gel cartridge eluting with (chloroform:methanol, 99:1) to provide the title compound (28.4 mg, 48%). 1H NMR (CDCl3) δ 8.78 (d, 2H), 7.83 (s, 2H), 7.40-6.75 (m, 15H), 5.24 (s, 4H), 4.27 (br s, 2H), 3.88 (br s, 2H), 3.28 (m, 3H), 2.91 (br s, 1H), 2.78 (br s, 1H), 2.45 (br s, 2H); MS (ESI+) m/z 670 (M+H)+.

Workup

  1. washwash with aqueous 10% NaHCO3 (2×10 mL), brine (10 mL)
  2. dry with materialdried over sodium sulfate
  3. filtrationfiltered
  4. concentrationthe filtrate was concentrated
  5. customThe residue was purified on a silica gel cartridge
  6. washeluting with (chloroform:methanol, 99:1)

Sources & evidence

ORD record
ord-3f3aa1805ac54504ad7b9739eac9dc9c
Source dataset
uspto-grants-2014_06
Patent number
US08741938B2

Reaction notes

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