Water → HCID 178440650, compound

HRID 2048573Notes

Reaction equation

HRID 2048573 reaction equation
[CH2:1]([C:5]1[N:10]2[N:11]=[CH:12][CH:13]=[C:9]2[N:8]([C@H:14]2[CH2:19][CH2:18][C@H:17]([OH:20])[CH2:16][CH2:15]2)[C:7](=[O:21])[C:6]=1[CH2:22][C:23]1[CH:24]=[CH:25][C:26]([C:29]2[CH:36]=[CH:35][CH:34]=[CH:33][C:30]=2[C:31]#[N:32])=[N:27][CH:28]=1)[CH2:2][CH2:3][CH3:4].[N+](=[CH:39][C:40]([O:42][CH2:43][CH3:44])=[O:41])=[N-].C(OCC)(=O)C.O>C1(C)C=CC=CC=1.C([O-])(=O)C.[Rh+3].C([O-])(=O)C.C([O-])(=O)C>[CH2:1]([C:5]1[N:10]2[N:11]=[CH:12][CH:13]=[C:9]2[N:8]([C@H:14]2[CH2:19][CH2:18][C@H:17]([O:20][CH2:39][C:40]([O:42][CH2:43][CH3:44])=[O:41])[CH2:16][CH2:15]2)[C:7](=[O:21])[C:6]=1[CH2:22][C:23]1[CH:28]=[N:27][C:26]([C:29]2[CH:36]=[CH:35][CH:34]=[CH:33][C:30]=2[C:31]#[N:32])=[CH:25][CH:24]=1)[CH2:2][CH2:3][CH3:4]

Participants

7

Reactant 4

HCID 962WaterHCID 8857Ethyl AcetateHCID 12192Ethyl diazoacetateHCID 178440648HCID 178440648, compound

Product 1

HCID 178440650HCID 178440650, compoundYield 47%

Reagents, catalysts & solvents 2

HCID 168478Rhodium acetateCatalystHCID 1140TolueneSolvent

Procedure

To a solution of 2-(5-{[7-butyl-4-(trans-4-hydroxycyclohexyl)-5-oxo-4,5-dihydropyrazolo[1,5-a]pyrimidin-6-yl]methyl}pyridin-2-yl)benzonitrile (0.48 g) and rhodium acetate (dimer, 0.044 g) in toluene (5 mL) was added dropwise ethyl diazoacetate (0.52 mL), and the mixture was stirred for 5 hr. Ethyl acetate and water were added to the reaction mixture, and the mixture was extracted with ethyl acetate. The organic layer was washed with water and then with saturated brine, dried over anhydrous magnesium sulfate, and concentrated. The residue was purified by silica gel column chromatography to give the title compound as a pale-yellow amorphous solid (0.26 g, 47%).

Workup

  1. extractionthe mixture was extracted with ethyl acetate
  2. washThe organic layer was washed with water
  3. dry with materialwith saturated brine, dried over anhydrous magnesium sulfate
  4. concentrationconcentrated
  5. customThe residue was purified by silica gel column chromatography

Sources & evidence

ORD record
ord-75f3909d40d441549bd49664fe49fb8c
Source dataset
uspto-grants-2013_11
Patent number
US08592431B2

Reaction notes

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