1-Methyl-1H-1,2,3-triazole → (4-chloro-2-methoxy-3-(4-(trifluoromethyl)benzyl)quinolin-6-yl)(2,4-dimethyloxazol-5-yl)(1-methyl-1H-1,2,3-triazol-5-yl)methanol

HRID 926646Notes

Reaction equation

HRID 926646 reaction equation
[CH3:1][N:2]1[CH:6]=[CH:5][N:4]=[N:3]1.[Li]CCCC.[Cl:12][C:13]1[C:22]2[C:17](=[CH:18][CH:19]=[C:20]([C:23]([C:25]3[O:29][C:28]([CH3:30])=[N:27][C:26]=3[CH3:31])=[O:24])[CH:21]=2)[N:16]=[C:15]([O:32][CH3:33])[C:14]=1[CH2:34][C:35]1[CH:40]=[CH:39][C:38]([C:41]([F:44])([F:43])[F:42])=[CH:37][CH:36]=1>C1COCC1>[Cl:12][C:13]1[C:22]2[C:17](=[CH:18][CH:19]=[C:20]([C:23]([C:25]3[O:29][C:28]([CH3:30])=[N:27][C:26]=3[CH3:31])([C:6]3[N:2]([CH3:1])[N:3]=[N:4][CH:5]=3)[OH:24])[CH:21]=2)[N:16]=[C:15]([O:32][CH3:33])[C:14]=1[CH2:34][C:35]1[CH:36]=[CH:37][C:38]([C:41]([F:43])([F:42])[F:44])=[CH:39][CH:40]=1

Participants

5

Reactant 3

HCID 1401191-Methyl-1H-1,2,3-triazoleHCID 86715638(4-Chloro-2-methoxy-3-(4-(trifluoromethyl)benzyl)quinolin-6-yl)(2,4-dimethyloxazol-5-yl)methanone2×HCID 178418339Butyllithium

Product 1

HCID 74221466(4-chloro-2-methoxy-3-(4-(trifluoromethyl)benzyl)quinolin-6-yl)(2,4-dimethyloxazol-5-yl)(1-methyl-1H-1,2,3-triazol-5-yl)methanol

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent2×

Conditions

Temperature
-40 °C

Procedure

To a flask containing 1-methyl-1H-1,2,3-triazole (200 mg, 2.41 mmol, prepared according to PCT Int. Appl., 2008098104) was added THF (20 mL) and the colorless solution was cooled to −40° C. Then, n-BuLi (2.5 M in hexanes, 1.0 mL, 2.5 mmol) was added drop wise which afforded a dark reddish-brown viscous solution. The mixture was stirred at −30° C. for 35 minutes, then a homogeneous THF solution of (4-chloro-2-methoxy-3-(4-(trifluoromethyl)benzyl)quinolin-6-yl)(2,4-dimethyloxazol-5-yl)methanone (500 mg, 1.05 mmol, in 4 mL THF, Intermediate 87: step b) was introduced at −20° C. The reaction mixture became a dark brown color and was then placed in an ice-water bath and allowed to warm gradually to room temperature. After 45 minutes, the mixture was quenched with aqueous NH4Cl solution and extracted with EtOAc:THF (10:2), 4×50 mL. The combined organics were washed with brine, dried over Na2SO4, filtered and concentrated to provide a brown oil. Chromatography on silica gel (3% MeOH-DCM increasing to 5% MeOH-DCM) to provide the title compound as a faint amber solid. MS m/e 558.2 [M+H]+. 1H NMR (400 MHz, CDCl3) δ ppm 8.15 (d, J=2.0 Hz, 1H), 7.86 (d, J=8.8 Hz, 1H), 7.54-7.47 (m, 3H), 7.40 (d, J=8.1 Hz, 2H), 7.14 (s, 1H), 4.35 (s, 2H), 4.10 (s, 3H), 4.03 (s, 1H), 3.92 (s, 3H), 2.40 (s, 3H), 1.54 (s, 3H).

Workup

  1. customafforded a dark reddish-brown viscous solution
  2. customwas then placed in an ice-water bath
  3. temperatureto warm gradually to room temperature
  4. waitAfter 45 minutes
  5. customthe mixture was quenched with aqueous NH4Cl solution
  6. extractionextracted with EtOAc:THF (10:2), 4×50 mL
  7. washThe combined organics were washed with brine
  8. dry with materialdried over Na2SO4
  9. filtrationfiltered
  10. concentrationconcentrated
  11. customto provide a brown oil

Sources & evidence

ORD record
ord-fb713da9396649da963ddaf5780bad5c
Source dataset
uspto-grants-2016_03
Patent number
US09284308B2

Reaction notes

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