1-Hydroxybenzotriazole → Tert-butyl (4-{2-[2-(acetylamino)-5-({[4-(methylthio)benzyl]amino}carbonyl)-1,3-thiazol-4-yl]ethyl}phenyl)carbamate

HRID 2117900Notes

Reaction equation

HRID 2117900 reaction equation
[C:1]([NH:4][C:5]1[S:6][C:7]([C:26](O)=[O:27])=[C:8]([CH2:10][CH2:11][C:12]2[CH:17]=[CH:16][C:15]([NH:18][C:19]([O:21][C:22]([CH3:25])([CH3:24])[CH3:23])=[O:20])=[CH:14][CH:13]=2)[N:9]=1)(=[O:3])[CH3:2].[CH3:29][S:30][C:31]1[CH:38]=[CH:37][C:34]([CH2:35][NH2:36])=[CH:33][CH:32]=1.ON1C2C=CC=CC=2N=N1.Cl.C(N=C=NCCCN(C)C)C.C([O-])(O)=O.[Na+]>CN(C=O)C>[C:22]([O:21][C:19](=[O:20])[NH:18][C:15]1[CH:16]=[CH:17][C:12]([CH2:11][CH2:10][C:8]2[N:9]=[C:5]([NH:4][C:1](=[O:3])[CH3:2])[S:6][C:7]=2[C:26]([NH:36][CH2:35][C:34]2[CH:37]=[CH:38][C:31]([S:30][CH3:29])=[CH:32][CH:33]=2)=[O:27])=[CH:13][CH:14]=1)([CH3:25])([CH3:24])[CH3:23]

Participants

7

Reactant 5

HCID 757711-HydroxybenzotriazoleHCID 516892Sodium BicarbonateHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 27600804-(Methylthio)benzylamineHCID 219153162-(Acetylamino)-4-(2-[4-[(tert-butoxycarbonyl)amino]phenyl}ethyl)-1,3-thiazole-5-carboxylic acid

Product 1

HCID 86595599Tert-butyl (4-{2-[2-(acetylamino)-5-({[4-(methylthio)benzyl]amino}carbonyl)-1,3-thiazol-4-yl]ethyl}phenyl)carbamateYield 102.2%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

A mixture of 2-(acetylamino)-4-(2-{4-[(tert-butoxycarbonyl)amino]phenyl}ethyl)-1,3-thiazole-5-carboxylic acid (120 mg), [4-(methylthio)benzyl]amine (45.4 mg), 1-hydroxybenzotriazole (44 mg) and 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (59.6 mg) in DMF (2 ml) was stirred at r.t. for 17 hours. The reaction mixture was poured into saturated NaHCO3, and extracted with CHCl3. The organic layer was washed with water and brine, dried over anhydrous MgSO4, and concentrated in vacuo. The residue was purified by preparative silica gel chromatography with CHCl3/AcOEt (1:1) as an eluent to give tert-butyl(4-(2-[2-(acetylamino)-5-({[4-(methylthio)benzyl]amino}carbonyl)-1,3-thiazol-4-yl]ethyl}phenyl)carbamate (163.5 mg) as an off-white solid.

Workup

  1. extractionextracted with CHCl3
  2. washThe organic layer was washed with water and brine
  3. dry with materialdried over anhydrous MgSO4
  4. concentrationconcentrated in vacuo
  5. customThe residue was purified by preparative silica gel chromatography with CHCl3/AcOEt (1:1) as an eluent

Sources & evidence

ORD record
ord-a33203d64549423c94545a245d810c30
Source dataset
uspto-grants-2008_10
Patent number
US07442715B2

Reaction notes

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