(Methoxycarbonylsulfamoyl)triethylammonium hydroxide → (rac)-4-{4-Cyano-2-[phenylsulfonyl]phenyl}-6-methyl-2-oxo-1-[3-(trifluoromethyl)phenyl]-1,2,3,4-tetrahydropyrimidine-5-carbonitrile
Reaction equation
[C:1]([C:3]1[CH:8]=[CH:7][C:6]([CH:9]2[C:14]([C:15]([NH2:17])=O)=[C:13]([CH3:18])[N:12]([C:19]3[CH:24]=[CH:23][CH:22]=[C:21]([C:25]([F:28])([F:27])[F:26])[CH:20]=3)[C:11](=[O:29])[NH:10]2)=[C:5]([S:30]([C:33]2[CH:38]=[CH:37][CH:36]=[CH:35][CH:34]=2)(=[O:32])=[O:31])[CH:4]=1)#[N:2].[OH-].COC(NS([N+](CC)(CC)CC)(=O)=O)=O>C1COCC1>[C:1]([C:3]1[CH:8]=[CH:7][C:6]([CH:9]2[C:14]([C:15]#[N:17])=[C:13]([CH3:18])[N:12]([C:19]3[CH:24]=[CH:23][CH:22]=[C:21]([C:25]([F:26])([F:28])[F:27])[CH:20]=3)[C:11](=[O:29])[NH:10]2)=[C:5]([S:30]([C:33]2[CH:38]=[CH:37][CH:36]=[CH:35][CH:34]=2)(=[O:31])=[O:32])[CH:4]=1)#[N:2]Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
The reaction was carried out under argon. (rac)-4-{4-Cyano-2-[phenylsulfonyl]phenyl}-6-methyl-2-oxo-1-[3-(trifluoromethyl)phenyl]-1,2,3,4-tetrahydropyrimidine-5-carboxamide (137 mg, 253 μmol) was initially charged in dry THF (8 ml), methoxycarbonylsulfamoyltriethylammonium hydroxide (Burgess reagent; 121 mg, 507 μmol; 2 eq.) was added and the mixture was stirred at RT for 8 h (HPLC control). The reaction mixture was then concentrated under reduced pressure, and the residue was purified by preparative HPLC (column: Gromsil C-18; mobile phase: acetonitrile/water+0.1% TFA 10:90→90:10). This gave the title compound as a solid (106 mg, 80% of theory).
Workup
- concentrationThe reaction mixture was then concentrated under reduced pressure
- customthe residue was purified by preparative HPLC (column: Gromsil C-18; mobile phase: acetonitrile/water+0.1% TFA 10:90→90:10)
Sources & evidence
- ORD record
- ord-259d0a820b6248fa9411b75640303f63
- Source dataset
- uspto-grants-2015_11
- Patent number
- US09174997B2
Reaction notes
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