2,6-Lutidine → 4'-[(1-{2,2-dimethyl-4-[(triisopropylsilyl)oxy]-3,4-dihydro-2H-chromen-6-yl}-2-methyl-6-oxo-4-propyl-1,6-dihydropyrimidin-5-yl)methyl]biphenyl-2-carbonitrile

HRID 1673851Notes

Reaction equation

HRID 1673851 reaction equation
[OH:1][CH:2]1[C:11]2[C:6](=[CH:7][CH:8]=[C:9]([N:12]3[C:17](=[O:18])[C:16]([CH2:19][C:20]4[CH:25]=[CH:24][C:23]([C:26]5[C:27]([C:32]#[N:33])=[CH:28][CH:29]=[CH:30][CH:31]=5)=[CH:22][CH:21]=4)=[C:15]([CH2:34][CH2:35][CH3:36])[N:14]=[C:13]3[CH3:37])[CH:10]=2)[O:5][C:4]([CH3:39])([CH3:38])[CH2:3]1.N1C(C)=CC=CC=1C.FC(F)(F)S(O[Si:54]([CH:61]([CH3:63])[CH3:62])([CH:58]([CH3:60])[CH3:59])[CH:55]([CH3:57])[CH3:56])(=O)=O>ClCCl.C(OCC)(=O)C>[CH3:39][C:4]1([CH3:38])[CH2:3][CH:2]([O:1][Si:54]([CH:61]([CH3:63])[CH3:62])([CH:58]([CH3:60])[CH3:59])[CH:55]([CH3:57])[CH3:56])[C:11]2[C:6](=[CH:7][CH:8]=[C:9]([N:12]3[C:17](=[O:18])[C:16]([CH2:19][C:20]4[CH:25]=[CH:24][C:23]([C:26]5[C:27]([C:32]#[N:33])=[CH:28][CH:29]=[CH:30][CH:31]=5)=[CH:22][CH:21]=4)=[C:15]([CH2:34][CH2:35][CH3:36])[N:14]=[C:13]3[CH3:37])[CH:10]=2)[O:5]1

Participants

6

Reactant 3

HCID 79372,6-LutidineHCID 2724529Triisopropylsilyl trifluoromethanesulfonateHCID 574604074'-{[1-(4-hydroxy-2,2-dimethyl-3,4-dihydro-2H-chromen-6-yl)-2-methyl-6-oxo-4-propyl-1,6-dihydropyrimidin-5-yl]methyl}biphenyl-2-carbonitrile

Product 1

HCID 574604094'-[(1-{2,2-dimethyl-4-[(triisopropylsilyl)oxy]-3,4-dihydro-2H-chromen-6-yl}-2-methyl-6-oxo-4-propyl-1,6-dihydropyrimidin-5-yl)methyl]biphenyl-2-carbonitrileYield 100%

Reagents, catalysts & solvents 2

HCID 6344DichloromethaneSolventHCID 8857Ethyl AcetateSolvent

Procedure

To a solution of 4′-{[1-(4-hydroxy-2,2-dimethyl-3,4-dihydro-2H-chromen-6-yl)-2-methyl-6-oxo-4-propyl-1,6-dihydropyrimidin-5-yl]methyl}biphenyl-2-carbonitrile (3.1 g) and 2,6-lutidine (2.1 mL) in dichloromethane (30 mL) was added triisopropylsilyl trifluoromethanesulfonate (3.2 mL), and the mixture was stirred for 1 hr. The reaction mixture was diluted with ethyl acetate, washed with 5% aqueous potassium hydrogen sulfate solution and then with saturated brine, and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure and the residue was purified by silica gel column chromatography to give the title compound (4.1 g, 100%) as a solid.

Workup

  1. washwashed with 5% aqueous potassium hydrogen sulfate solution
  2. dry with materialwith saturated brine, and dried over anhydrous magnesium sulfate
  3. customThe solvent was evaporated under reduced pressure
  4. customthe residue was purified by silica gel column chromatography

Sources & evidence

ORD record
ord-998147ad8fbd45099e1b7580b200c2b9
Source dataset
uspto-grants-2011_08
Patent number
US07998968B2

Reaction notes

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