1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide → 2-(4-tert-butyl-3,5-difluorophenoxy)-N-((1R)-1-{3-(hydroxymethyl)-4-[(methylsulfonyl)amino]phenyl}ethyl)acetamide

HRID 230594

Reaction equation

HRID 230594 reaction equation
Cl.[NH2:2][C@@H:3]([C:5]1[CH:10]=[CH:9][C:8]([NH:11][S:12]([CH3:15])(=[O:14])=[O:13])=[C:7]([CH2:16][OH:17])[CH:6]=1)[CH3:4].[C:18]([C:22]1[C:32]([F:33])=[CH:31][C:25]([O:26][CH2:27][C:28](O)=[O:29])=[CH:24][C:23]=1[F:34])([CH3:21])([CH3:20])[CH3:19].CN(C)CCCN=C=NCC>CN(C)C=O.CN(C)C1C=CN=CC=1>[C:18]([C:22]1[C:23]([F:34])=[CH:24][C:25]([O:26][CH2:27][C:28]([NH:2][C@@H:3]([C:5]2[CH:10]=[CH:9][C:8]([NH:11][S:12]([CH3:15])(=[O:14])=[O:13])=[C:7]([CH2:16][OH:17])[CH:6]=2)[CH3:4])=[O:29])=[CH:31][C:32]=1[F:33])([CH3:21])([CH3:19])[CH3:20]

Participants

6

Reactant 3

HCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 68804307N-[4-[(1R)-1-aminoethyl]-2-(hydroxymethyl)phenyl]methanesulfonamide hydrochlorideHCID 68804332(4-tert-Butyl-3,5-difluorophenoxy)acetic acid

Product 1

HCID 577629242-(4-tert-butyl-3,5-difluorophenoxy)-N-((1R)-1-{3-(hydroxymethyl)-4-[(methylsulfonyl)amino]phenyl}ethyl)acetamideYield 36.4%

Reagents, catalysts & solvents 2

HCID 142844-(Dimethylamino)pyridineCatalystHCID 6228DimethylformamideSolvent

Procedure

To a solution of N-[4-[(1R)-1-aminoethyl]-2-(hydroxymethyl)phenyl]methanesulfonamide hydrochloride (40 mg, 0.14 mmol) in N,N-dimethylformamide (DMF) (2 ml), (4-tert-butyl-3,5-difluorophenoxy)acetic acid (34 mg, 0.14 mmol), N-(3-dimethylaminopropyl)-N′-ethylcarbodiimide (40 mg), and 4-dimethylaminopyridine (DMAP) (0.5 mg, 0.004 mmol) were added. The solution was stirred at room temperature for 16 hours and then partitioned between ethyl acetate and water. The organic layer was dried over sodium sulfate, filtered, and evaporated. The residue obtained was purified by silica gel column chromatography, eluting with methylene chloride/ethylacetate (1:1), to give 2-(4-tert-butyl-3,5-difluorophenoxy)-N-((1R)-1-{3-(hydroxymethyl)-4-[(methylsulfonyl)amino]phenyl}ethyl)acetamide (24 mg, 36%).

Workup

  1. custompartitioned between ethyl acetate and water
  2. dry with materialThe organic layer was dried over sodium sulfate
  3. filtrationfiltered
  4. customevaporated
  5. customThe residue obtained
  6. customwas purified by silica gel column chromatography
  7. washeluting with methylene chloride/ethylacetate (1:1)

Sources & evidence

ORD record
ord-5d2e081b29804d5292c06fcfc514c624
Source dataset
uspto-grants-2009_07
Patent number
US07566739B2

Linked notes

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