Toluene → HCID 90233214, compound

HRID 1748838Notes

Reaction equation

HRID 1748838 reaction equation
C[Si]([N-][Si](C)(C)C)(C)C.[Li+].C1(C)C=CC=CC=1.[OH:18][C@@:19]1([C:47]([F:50])([F:49])[F:48])[CH2:35][C:24]2[N:25]([CH3:34])[N:26]=[C:27]([C:28]3[CH:33]=[CH:32][CH:31]=[CH:30][N:29]=3)[C:23]=2[C@@H:22]([C:36]2[CH:45]=[CH:44][C:39]([C:40]([O:42]C)=O)=[CH:38][C:37]=2[CH3:46])[CH2:21][CH2:20]1.[CH3:51][C:52]1[C:57]([NH2:58])=[CH:56][CH:55]=[CH:54][N:53]=1>C1COCC1>[OH:18][C@@:19]1([C:47]([F:49])([F:48])[F:50])[CH2:35][C:24]2[N:25]([CH3:34])[N:26]=[C:27]([C:28]3[CH:33]=[CH:32][CH:31]=[CH:30][N:29]=3)[C:23]=2[C@@H:22]([C:36]2[CH:45]=[CH:44][C:39]([C:40]([NH:58][C:57]3[C:52]([CH3:51])=[N:53][CH:54]=[CH:55][CH:56]=3)=[O:42])=[CH:38][C:37]=2[CH3:46])[CH2:21][CH2:20]1

Participants

6

Reactant 4

HCID 1140Toluene2×HCID 5726163-Amino-2-methylpyridine2×HCID 2733832Lithium Hexamethyldisilazide2×HCID 90233532HCID 90233532, compound

Product 1

HCID 90233214HCID 90233214, compoundYield 13.3%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

1 M lithium bis(trimethylsilyl)amide in toluene (0.24 mL, 0.24 mmol) was added dropwise to a solution of rac-methyl 4-((4R,7R)-7-hydroxy-1-methyl-3-(pyridin-2-yl)-7-(trifluoromethyl)-1,4,5,6,7,8-hexahydrocyclohepta[c]pyrazol-4-yl)-3-methylbenzoate (0.034 g, 0.07 mmol) and 2-methylpyridin-3-amine (0.012 g, 0.11 mmol, Appollo) in THF (2 mL) at about 0° C. The mixture was allowed to warm to rt. After about 2 h, the mixture was cooled to about 0° C. 2-Methylpyridin-3-amine (0.008 g, 0.07 mmol) and 1 M lithium bis(trimethylsilyl)amide in toluene (0.07 mL, 0.07 mmol) were added then the mixture was allowed to warm to rt. After about 5 h a saturated aqueous NH4 Cl solution (20 mL) was added and then mixture was extracted with EtOAc (2×20 mL). The combined organic extracts were washed with brine (20 mL), dried with Na2SO4, filtered and concentrated in vacuo. The residue was purified by column chromatography (SiO2, 2-6% MeOH/DCM). The appropriate fractions were concentrated in vacuo. The product was recrystallized from Et2O to give rac-4-((4R,7R)-7-hydroxy-1-methyl-3-(pyridin-2-yl)-7-(trifluoromethyl)-1,4,5,6,7,8-hexahydrocyclohepta[c]pyrazol-4-yl)-3-methyl-N-(2-methylpyridin-3-yl)benzamide (0.005 g, 12%): LC-MS (Table 1, Method g) Rt=1.86 min, m/z 536 (M+H)+; 1H-NMR (DMSO, Bruker 400 MHz) δ 9.85 (s, 1H), 8.44-8.41 (m, 1H), 8.32-8.29 (m, 1H), 7.82-7.78 (m, 1H), 7.75-7.67 (m, 3H), 7.60-7.56 (m, 1H), 7.26-7.22 (m, 1H), 7.18-7.14 (m, 1H), 6.98 (d, J=8.0 Hz, 1H), 6.21 (s, 1H), 5.61-5.55 (m, 1H), 3.93 (s, 3H), 3.40-3.32 (m, 2H), 2.61 (s, 3H), 2.40 (s, 3H), 2.36-2.26 (m, 1H), 1.93-1.83 (m, 1H), 1.80-1.71 (m, 2H).

Workup

  1. temperaturethe mixture was cooled to about 0° C
  2. temperatureto warm to rt
  3. extractionmixture was extracted with EtOAc (2×20 mL)
  4. washThe combined organic extracts were washed with brine (20 mL)
  5. dry with materialdried with Na2SO4
  6. filtrationfiltered
  7. concentrationconcentrated in vacuo
  8. customThe residue was purified by column chromatography (SiO2, 2-6% MeOH/DCM)
  9. concentrationThe appropriate fractions were concentrated in vacuo
  10. customThe product was recrystallized from Et2O

Sources & evidence

ORD record
ord-88e07ff77dec4ff3931c73d82e93d49d
Source dataset
uspto-grants-2015_10
Patent number
US09150592B2

Reaction notes

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