1,2-Dichloroethane → HCID 508568, compound

HRID 396888Notes

Reaction equation

HRID 396888 reaction equation
[CH3:1][C:2]1[CH:7]=[CH:6][C:5]([S:8]([NH:11][C@H:12]([C:23]([NH:25][CH2:26][CH2:27][CH2:28][CH2:29][C@H:30]([N:34]([S:39]([C:42]2[CH:47]=[CH:46][C:45]([CH3:48])=[CH:44][CH:43]=2)(=[O:41])=[O:40])[CH2:35][CH:36]([CH3:38])[CH3:37])[C:31]([OH:33])=[O:32])=[O:24])[CH2:13][C:14]2[C:22]3[C:17](=[CH:18][CH:19]=[CH:20][CH:21]=3)[NH:16][CH:15]=2)(=[O:10])=[O:9])=[CH:4][CH:3]=1.[OH:49][CH2:50][CH:51]([CH2:53]O)[OH:52].C(Cl)CCl>CN(C=O)C.C(O)(=O)CC(CC(O)=O)(C(O)=O)O>[CH3:1][C:2]1[CH:7]=[CH:6][C:5]([S:8]([NH:11][C@H:12]([C:23]([NH:25][CH2:26][CH2:27][CH2:28][CH2:29][C@H:30]([N:34]([S:39]([C:42]2[CH:43]=[CH:44][C:45]([CH3:48])=[CH:46][CH:47]=2)(=[O:41])=[O:40])[CH2:35][CH:36]([CH3:38])[CH3:37])[C:31]([O:33][CH2:53][CH:51]([OH:52])[CH2:50][OH:49])=[O:32])=[O:24])[CH2:13][C:14]2[C:22]3[C:17](=[CH:18][CH:19]=[CH:20][CH:21]=3)[NH:16][CH:15]=2)(=[O:9])=[O:10])=[CH:4][CH:3]=1

Participants

6

Reactant 3

HCID 111,2-DichloroethaneHCID 753GlycerolHCID 508527HCID 508527, compound

Product 1

HCID 508568HCID 508568, compoundYield 40%

Reagents, catalysts & solvents 2

HCID 311Citric AcidSolventHCID 6228DimethylformamideSolvent

Procedure

A solution of Nα-isobutyl-Nα-(4-methylbenzenesulfonyl)-Nε-[N′α-(4-methylbenzenesulfonyl)-L-tryptophanyl]-L-lysine (product of example 2, 70 mg, 0.1 mmol) in DMF (1 mL) was treated with glycerol (100 mg) and EDC (100 mg, 0.5 mmol) and stirred overnight. The solution is then poured in 5% citric acid and extracted with EtOAc (5 mL). The solvent was evaporated and the residue was purified by preparative HPLC to yield 30 mg (40%) of the desired ester.

Workup

  1. extractionextracted with EtOAc (5 mL)
  2. customThe solvent was evaporated
  3. customthe residue was purified by preparative HPLC

Sources & evidence

ORD record
ord-56ef953710a6464cb3e8a752e04e55db
Source dataset
uspto-grants-2003_08
Patent number
US06608100B1

Reaction notes

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