Dicyclohexylcarbodiimide → HCID 53793533, compound

HRID 266372Notes

Reaction equation

HRID 266372 reaction equation
[Br:1][C:2]1[CH:7]=[CH:6][C:5]([S:8]([NH:11][C@@H:12]([CH2:16][CH2:17][CH3:18])[C:13](O)=[S:14])(=[O:10])=[O:9])=[CH:4][CH:3]=1.[NH2:19][C:20]1[CH:25]=[CH:24][C:23]([CH2:26][C:27]([O:29][CH2:30][CH3:31])=[O:28])=[CH:22][CH:21]=1.C1(N=C=NC2CCCCC2)CCCCC1>ClCCl>[Br:1][C:2]1[CH:7]=[CH:6][C:5]([S:8]([NH:11][C@@H:12]([CH2:16][CH2:17][CH3:18])[C:13]([NH:19][C:20]2[CH:21]=[CH:22][C:23]([CH2:26][C:27]([O:29][CH2:30][CH3:31])=[O:28])=[CH:24][CH:25]=2)=[S:14])(=[O:10])=[O:9])=[CH:4][CH:3]=1

Participants

5

Reactant 3

HCID 10868DicyclohexylcarbodiimideHCID 225219p-Aminophenylacetic acid ethyl esterHCID 178448385HCID 178448385, compound

Product 1

HCID 53793533HCID 53793533, compoundYield 16%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

The procedure described in Example 180 was repeated, except that (S)-2-(4-bromobenzenesulfonylamino)-4-methylthiobutanoic acid (7.86 g) and ethyl 4-aminophenylacetate (3.64 g) were condensed in dichloromethane (80 ml) in the presence of N,N'-dicyclohexylcarbodiimide (5.28 g). The reaction mixture was filtered, and the filtrate was concentrated. The resulting crude product was recrystallized from ethanol to obtain (S)-2-(4-bromobenzenesulfonylamino)-N-(4-(ethoxycarbonylmethyl)phenyl)-4-methylthiobutanamide (1.67 g).

Workup

  1. filtrationThe reaction mixture was filtered
  2. concentrationthe filtrate was concentrated
  3. customThe resulting crude product was recrystallized from ethanol

Sources & evidence

ORD record
ord-d04e09b40038496db6988977302c61cd
Source dataset
uspto-grants-1997_07
Patent number
US05650428

Reaction notes

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