Diisopropylamine → Ethyl 4-(4-(6-((cyclopropyl methyl)(propyl)amino)pyrimidine-4-carboxamido)-3-methylphenylsulfonamido)butanoate

HRID 1946796Notes

Reaction equation

HRID 1946796 reaction equation
Cl[C:2]1[N:7]=[CH:6][N:5]=[C:4]([C:8]([NH:10][C:11]2[CH:16]=[CH:15][C:14]([S:17]([NH:20][CH2:21][CH2:22][CH2:23][C:24]([O:26][CH2:27][CH3:28])=[O:25])(=[O:19])=[O:18])=[CH:13][C:12]=2[CH3:29])=[O:9])[CH:3]=1.C(NC(C)C)(C)C.[CH:37]1([CH2:40][NH:41][CH2:42][CH2:43][CH3:44])[CH2:39][CH2:38]1>C(O)C>[CH:37]1([CH2:40][N:41]([CH2:42][CH2:43][CH3:44])[C:2]2[N:7]=[CH:6][N:5]=[C:4]([C:8]([NH:10][C:11]3[CH:16]=[CH:15][C:14]([S:17]([NH:20][CH2:21][CH2:22][CH2:23][C:24]([O:26][CH2:27][CH3:28])=[O:25])(=[O:19])=[O:18])=[CH:13][C:12]=3[CH3:29])=[O:9])[CH:3]=2)[CH2:39][CH2:38]1

Participants

5

Reactant 3

HCID 7912DiisopropylamineHCID 117787Cyclopropanemethanamine, N-propyl-HCID 59446961Ethyl 4-(4-(6-chloropyrimidine-4-carboxamido)-3-methylphenylsulfonamido)butanoate2×

Product 1

HCID 67529174Ethyl 4-(4-(6-((cyclopropyl methyl)(propyl)amino)pyrimidine-4-carboxamido)-3-methylphenylsulfonamido)butanoate

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Conditions

Temperature
160 °C

Procedure

A solution of ethyl 4-(4-(6-chloropyrimidine-4-carboxamido)-3-methylphenylsulfonamido)butanoate (Intermediate 35, 123 mg; 0.31 mmol) and diisopropylamine (105.5 mL; 0.61 mmol) in ethanol (4 ml) was treated with N-(cyclopropylmethyl)propan-1-amine (45.3 mg; 0.4 mmol). The mixture was heated to 160° C. in a microwave for 1 hour and the solvent removed in vacuo. The residue purified by column chromatography (silica) eluting with petroleum ether containing increasing amounts of EtOAc to give ethyl 4-(4-(6-((cyclopropyl methyl)(propyl)amino)pyrimidine-4-carboxamido)-3-methylphenylsulfonamido)butanoate which was used directly without any further purification. The residue was dissolved in methanol (10 ml) and THF (10 ml) and treated with 5 N NaOH solution (1 ml). After stirring at RT for 5 hours the solvent was removed in vacuo. The residue was redissolved in water (10 ml) and acidified with conc. HCl. The aqueous phase was extracted with EtOAc and the organic extracts passed through a hydrophobic frit and the solvent removed in vacuo. The residue was triturated with petroleum ether to yield the title compound as a white solid.

Workup

  1. customthe solvent removed in vacuo
  2. customThe residue purified by column chromatography (silica)
  3. washeluting with petroleum ether containing
  4. temperatureincreasing amounts of EtOAc

Sources & evidence

ORD record
ord-304492a674cb471894f01e18c2ec1239
Source dataset
uspto-grants-2013_03
Patent number
US08399448B2

Reaction notes

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