1,2-Dichloroethane → 3-[1-(4-carbamoyl-2-methylphenyl)-5-[4-(2-hydroxyacetylamino)-phenyl]-1H-pyrrol-2-yl]-propionic acid ethyl ester

HRID 2280293Notes

Reaction equation

HRID 2280293 reaction equation
[CH2:1]([O:3][C:4](=[O:29])[CH2:5][CH2:6][C:7]1[N:8]([C:19]2[CH:24]=[CH:23][C:22]([C:25](=[O:27])[NH2:26])=[CH:21][C:20]=2[CH3:28])[C:9]([C:12]2[CH:17]=[CH:16][C:15]([NH2:18])=[CH:14][CH:13]=2)=[CH:10][CH:11]=1)[CH3:2].[C:30](O)(=[O:33])[CH2:31][OH:32].CN(C(ON1N=NC2C=CC=CC1=2)=[N+](C)C)C.[B-](F)(F)(F)F.C(Cl)CCl>CN(C)C=O.O>[CH2:1]([O:3][C:4](=[O:29])[CH2:5][CH2:6][C:7]1[N:8]([C:19]2[CH:24]=[CH:23][C:22]([C:25](=[O:27])[NH2:26])=[CH:21][C:20]=2[CH3:28])[C:9]([C:12]2[CH:13]=[CH:14][C:15]([NH:18][C:31](=[O:32])[CH2:30][OH:33])=[CH:16][CH:17]=2)=[CH:10][CH:11]=1)[CH3:2]

Participants

7

Reactant 4

HCID 111,2-DichloroethaneHCID 757Glycolic AcidHCID 2733207O-(Benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborateHCID 583056233-[5-(4-aminophenyl)-1-(4-carbamoyl-2-methylphenyl)-1H-pyrrol-2-yl]propanoic acid ethyl ester

Product 1

HCID 583056443-[1-(4-carbamoyl-2-methylphenyl)-5-[4-(2-hydroxyacetylamino)-phenyl]-1H-pyrrol-2-yl]-propionic acid ethyl esterYield 60%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6228DimethylformamideSolvent

Procedure

Under a nitrogen atmosphere, 3-[5-(4-aminophenyl)-1-(4-carbamoyl-2-methylphenyl)-1H-pyrrol-2-yl]-propionic acid ethyl ester (11A, see scheme 11) (102 mg, 0.26 mmol), glycolic acid (40 mg, 0.52 mmol), TBTU (167 mg, 0.52 mmol), and EDC (101 mg, 0.65 mmol) were dissolved in 1 mL N, N-dimethylformamide. After 24 hrs, the reaction was diluted with water and extracted with ethyl acetate. The combined organic layers were dried over Na2SO4, filtered and concentrated in vacuo. The crude material was purified by preparative TLC plate (1500 microns, 10% IPA/CH2Cl2). The desired band (rf=0.25) was isolated and dried under high vacuum to yield 3-{1-(4-carbamoyl-2-methylphenyl)-5-[4-(2-hydroxyacetylamino)-phenyl]-1H-pyrrol-2-yl]-propionic acid ethyl ester (18B) (66 mg, 60%, yellow powder).

Workup

  1. extractionextracted with ethyl acetate
  2. dry with materialThe combined organic layers were dried over Na2SO4
  3. filtrationfiltered
  4. concentrationconcentrated in vacuo
  5. customThe crude material was purified by preparative TLC plate (1500 microns, 10% IPA/CH2Cl2)
  6. customThe desired band (rf=0.25) was isolated
  7. customdried under high vacuum

Sources & evidence

ORD record
ord-36ec6ec3b568439ea9a5c0c002a6a666
Source dataset
uspto-grants-2015_09
Patent number
US09138427B2

Reaction notes

Loading…