Water → 2-(5-methyl-2-{7-(methyl(2-thienylsulfonyl)amino]-1H-indol-2-yl}-4,5-dihydro-1,3-thiazol-5-yl)ethyl methanesulfonate

HRID 2239061Notes

Reaction equation

HRID 2239061 reaction equation
[OH:1][CH2:2][CH2:3][C:4]1([CH3:28])[S:8][C:7]([C:9]2[NH:10][C:11]3[C:16]([CH:17]=2)=[CH:15][CH:14]=[CH:13][C:12]=3[N:18]([CH3:27])[S:19]([C:22]2[S:23][CH:24]=[CH:25][CH:26]=2)(=[O:21])=[O:20])=[N:6][CH2:5]1.C(N(CC)CC)C.[CH3:36][S:37](Cl)(=[O:39])=[O:38].O>O1CCCC1>[CH3:36][S:37]([O:1][CH2:2][CH2:3][C:4]1([CH3:28])[S:8][C:7]([C:9]2[NH:10][C:11]3[C:16]([CH:17]=2)=[CH:15][CH:14]=[CH:13][C:12]=3[N:18]([CH3:27])[S:19]([C:22]2[S:23][CH:24]=[CH:25][CH:26]=2)(=[O:21])=[O:20])=[N:6][CH2:5]1)(=[O:39])=[O:38]

Participants

6

Reactant 4

HCID 962WaterHCID 8471TriethylamineHCID 31297Methanesulfonyl chlorideHCID 57476112N-{2-[5-(2-hydroxyethyl)-5-methyl-4,5-dihydro-1,3-thiazol-2-yl]-1H-indol-7-yl}-N-methylthiophene-2-sulfonamide

Product 1

HCID 591358292-(5-methyl-2-{7-(methyl(2-thienylsulfonyl)amino]-1H-indol-2-yl}-4,5-dihydro-1,3-thiazol-5-yl)ethyl methanesulfonateYield 65%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

To a solution of N-{2-[5-(2-hydroxyethyl)-5-methyl-4,5-dihydro-1,3-thiazol-2-yl]-1H-indol-7-yl}-N-methylthiophene-2-sulfonamide (0.75 g) and triethylamine (0.50 mL) in tetrahydrofuran (10 mL) was slowly added methanesulfonyl chloride (0.20 mL) at 0° C., and the mixture was stirred at room temperature for 1 hr. Water was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The ethyl acetate layer was washed with saturated brine, dried (MgSO4), and concentrated. The residue was subjected to silica gel column chromatography to give the title compound (0.56 g, yield 65%) as colorless crystals from a fraction eluted with ethyl acetate-hexane (3:1, volume ratio). melting point 149-150° C.

Workup

  1. customat 0° C.
  2. extractionthe mixture was extracted with ethyl acetate
  3. washThe ethyl acetate layer was washed with saturated brine
  4. dry with materialdried (MgSO4)
  5. concentrationconcentrated

Sources & evidence

ORD record
ord-135384004da4452d8f060e71576d2942
Source dataset
uspto-grants-2010_05
Patent number
US07718798B2

Reaction notes

Loading…