Cesium carbonate → (R)-1-(2,2-difluorobenzo-[d][1,3]dioxol-5-yl)-N-(6-(3-((2,2-dimethyl-1,3-dioxolan-4-yl)methoxy)-phenyl)-5-methylpyridin-2-yl)cyclopropanecarboxamide

HRID 2420926Notes

Reaction equation

HRID 2420926 reaction equation
[F:1][C:2]1([F:31])[O:6][C:5]2[CH:7]=[CH:8][C:9]([C:11]3([C:14]([NH:16][C:17]4[CH:22]=[CH:21][C:20]([CH3:23])=[C:19]([C:24]5[CH:29]=[CH:28][CH:27]=[C:26]([OH:30])[CH:25]=5)[N:18]=4)=[O:15])[CH2:13][CH2:12]3)=[CH:10][C:4]=2[O:3]1.CC1C=CC(S(O[CH2:43][C@@H:44]2[CH2:48][O:47][C:46]([CH3:50])([CH3:49])[O:45]2)(=O)=O)=CC=1.C([O-])([O-])=O.[Cs+].[Cs+]>CN(C=O)C>[F:31][C:2]1([F:1])[O:6][C:5]2[CH:7]=[CH:8][C:9]([C:11]3([C:14]([NH:16][C:17]4[CH:22]=[CH:21][C:20]([CH3:23])=[C:19]([C:24]5[CH:29]=[CH:28][CH:27]=[C:26]([O:30][CH2:43][C@@H:44]6[CH2:48][O:47][C:46]([CH3:50])([CH3:49])[O:45]6)[CH:25]=5)[N:18]=4)=[O:15])[CH2:12][CH2:13]3)=[CH:10][C:4]=2[O:3]1

Participants

5

Reactant 3

HCID 10796Cesium carbonateHCID 2723760(S)-(+)-2,2-Dimethyl-1,3-dioxolan-4-ylmethyl p-ToluenesulfonateHCID 591658801-(2,2-difluorobenzo[d][1,3]dioxol-5-yl)-N-(6-(3-hydroxyphenyl)-5-methylpyridin-2-yl)cyclopropanecarboxamide

Product 1

HCID 59165954(R)-1-(2,2-difluorobenzo-[d][1,3]dioxol-5-yl)-N-(6-(3-((2,2-dimethyl-1,3-dioxolan-4-yl)methoxy)-phenyl)-5-methylpyridin-2-yl)cyclopropanecarboxamide

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Conditions

Temperature
90 °C

Procedure

To a solution of 1-(2,2-difluorobenzo[d][1,3]dioxol-5-yl)-N-(6-(3-hydroxyphenyl)-5-methylpyridin-2-yl)cyclopropanecarboxamide (42 mg, 0.10 mmol) and (S)-(2,2-dimethyl-1,3-dioxolan-4-yl)methyl 4-methylbenzenesulfonate (34 mg, 0.12 mmol) in DMF (1 mL) was added Cs2CO3 (65 mg, 0.20 mmol). The mixture was heated at 90° C. for 4 hours. The mixture was partitioned between ethyl acetate and H2O, and the aqueous layer was extracted with ethyl acetate (3×). The combined organic layers were washed with brine, dried over MgSO4 and evaporated to dryness to yield (R)-1-(2,2-difluorobenzo-[d][1,3]dioxol-5-yl)-N-(6-(3-((2,2-dimethyl-1,3-dioxolan-4-yl)methoxy)-phenyl)-5-methylpyridin-2-yl)cyclopropanecarboxamide which was used in next step without further purification.

Workup

  1. customThe mixture was partitioned between ethyl acetate and H2O
  2. extractionthe aqueous layer was extracted with ethyl acetate (3×)
  3. washThe combined organic layers were washed with brine
  4. dry with materialdried over MgSO4
  5. customevaporated to dryness

Sources & evidence

ORD record
ord-bb94a7b10716460d982e1f1c487c290e
Source dataset
uspto-grants-2011_06
Patent number
US07956052B2

Reaction notes

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