1,2-Dichloroethane → 2,5-Dioxopyrrolidin-1-yl 18-((4-(3,5-dioxohexyl)phenyl)amino)-14,18-dioxo-4,7,10-trioxa-13-azaoctadecan-1-oate

HRID 2063249Notes

Reaction equation

HRID 2063249 reaction equation
C([O:5][C:6](=[O:41])[CH2:7][CH2:8][O:9][CH2:10][CH2:11][O:12][CH2:13][CH2:14][O:15][CH2:16][CH2:17][NH:18][C:19](=[O:40])[CH2:20][CH2:21][CH2:22][C:23](=[O:39])[NH:24][C:25]1[CH:30]=[CH:29][C:28]([CH2:31][CH2:32][C:33](=[O:38])[CH2:34][C:35](=[O:37])[CH3:36])=[CH:27][CH:26]=1)(C)(C)C.CCN(C(C)C)C(C)C.O[N:52]1[C:56](=[O:57])[CH2:55][CH2:54][C:53]1=[O:58].C(Cl)CCl>C(O)(C(F)(F)F)=O.C(Cl)Cl.C(Cl)Cl>[O:58]=[C:53]1[CH2:54][CH2:55][C:56](=[O:57])[N:52]1[O:5][C:6](=[O:41])[CH2:7][CH2:8][O:9][CH2:10][CH2:11][O:12][CH2:13][CH2:14][O:15][CH2:16][CH2:17][NH:18][C:19](=[O:40])[CH2:20][CH2:21][CH2:22][C:23](=[O:39])[NH:24][C:25]1[CH:26]=[CH:27][C:28]([CH2:31][CH2:32][C:33](=[O:38])[CH2:34][C:35](=[O:37])[CH3:36])=[CH:29][CH:30]=1

Participants

7

Reactant 4

HCID 111,2-DichloroethaneHCID 80170N-HydroxysuccinimideHCID 81531DiisopropylethylamineHCID 670685163-{2-[2-(2-{4-[4-(3,5-Dioxo-hexyl)-phenylcarbamoyl]-butyrylamino}-ethoxy)-ethoxy]-ethoxy}-propionic acid tert-butyl ester

Product 1

HCID 114563222,5-Dioxopyrrolidin-1-yl 18-((4-(3,5-dioxohexyl)phenyl)amino)-14,18-dioxo-4,7,10-trioxa-13-azaoctadecan-1-oate

Reagents, catalysts & solvents 2

HCID 6344DichloromethaneSolventHCID 21863450Trifluoroacetic acid methylene chlorideSolvent

Procedure

3-{2-[2-(2-{4-[4-(3,5-Dioxo-hexyl)-phenylcarbamoyl]-butyrylamino}-ethoxy)-ethoxy]-ethoxy}-propionic acid tert-butyl ester (400 mg, 0.692 mmol) was dissolved in TFA/CH2Cl2 (1:1, 3 mL) and the mixture stirred overnight. The solvent was removed to give an oil as the acid intermediate. This oil was dissolved in CH2Cl2 (4 mL) containing DIEA (569 μL, 3.09 mmol), N-hydroxysuccinimide (119 mg, 1.03 mmol) and EDC (197 mg, 1.0 mmol) and the mixture stirred over the night. The solvent was removed and the residual oil was purified using column chromatography EtOAc/MeOH (95:5) to give an oil as the title compound, (M+1)=620.

Workup

  1. customThe solvent was removed
  2. customto give an oil as the acid intermediate
  3. stirringthe mixture stirred over the night
  4. customThe solvent was removed
  5. customthe residual oil was purified

Sources & evidence

ORD record
ord-917ed818363d4db3a0d94f70e1328431
Source dataset
uspto-grants-2012_10
Patent number
US08288349B2

Reaction notes

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