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Diisopropylamine → Ethyl 4-(4-(6-(cyclohexyl(cyclopropylmethyl)amino)pyrimidine-4-carboxamido)-3-methylphenylsulfonamido)butanoate

HRID 1946759
Notes
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Reaction equation

HRID 1946759 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][CH:42]2[CH2:47][CH2:46][CH2:45][CH2:44][CH2:43]2)[CH2:39][CH2:38]1>C(O)C>[CH:42]1([N:41]([CH2:40][CH:37]2[CH2:38][CH2:39]2)[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)[CH2:43][CH2:44][CH2:45][CH2:46][CH2:47]1
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 3

HCID 7912DiisopropylamineHCID 1531432N-(cyclopropylmethyl)cyclohexanamineHCID 59446961Ethyl 4-(4-(6-chloropyrimidine-4-carboxamido)-3-methylphenylsulfonamido)butanoate2×

Product 1

HCID 67529929Ethyl 4-(4-(6-(cyclohexyl(cyclopropylmethyl)amino)pyrimidine-4-carboxamido)-3-methylphenylsulfonamido)butanoate

Reagents, catalysts & solvents 1

HCID 702
Ethanol
Solvent

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)cyclohexanamine (56.6 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-(cyclohexyl(cyclopropylmethyl)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 concentrated 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 (120 mg, 73%).

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-c8201370066646888a7692d1bc54ff62
Source dataset
uspto-grants-2013_03
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08399448B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes