Chloroacetonitrile → benzyl 3-(7-bromo-1-cyanomethyl-3-methyl-1H-indol-6-ylmethoxy)-4-{4-[3-(2-methoxybenzyloxy)propoxy]phenyl}piperidine-1-carboxylate

HRID 1176334

Reaction equation

HRID 1176334 reaction equation
[Br:1][C:2]1[C:3]([CH2:12][O:13][CH:14]2[CH:19]([C:20]3[CH:25]=[CH:24][C:23]([O:26][CH2:27][CH2:28][CH2:29][O:30][CH2:31][C:32]4[CH:37]=[CH:36][CH:35]=[CH:34][C:33]=4[O:38][CH3:39])=[CH:22][CH:21]=3)[CH2:18][CH2:17][N:16]([C:40]([O:42][CH2:43][C:44]3[CH:49]=[CH:48][CH:47]=[CH:46][CH:45]=3)=[O:41])[CH2:15]2)=[CH:4][CH:5]=[C:6]2[C:10]=1[NH:9][CH:8]=[C:7]2[CH3:11].[H-].[Na+].Cl[CH2:53][C:54]#[N:55].[Cl-].[NH4+]>CN1C(=O)N(C)CCC1.[I-].C([N+](CCCC)(CCCC)CCCC)CCC>[Br:1][C:2]1[C:3]([CH2:12][O:13][CH:14]2[CH:19]([C:20]3[CH:21]=[CH:22][C:23]([O:26][CH2:27][CH2:28][CH2:29][O:30][CH2:31][C:32]4[CH:37]=[CH:36][CH:35]=[CH:34][C:33]=4[O:38][CH3:39])=[CH:24][CH:25]=3)[CH2:18][CH2:17][N:16]([C:40]([O:42][CH2:43][C:44]3[CH:45]=[CH:46][CH:47]=[CH:48][CH:49]=3)=[O:41])[CH2:15]2)=[CH:4][CH:5]=[C:6]2[C:10]=1[N:9]([CH2:53][C:54]#[N:55])[CH:8]=[C:7]2[CH3:11]

Participants

7

Reactant 4

HCID 7856ChloroacetonitrileHCID 24758Sodium hydrideHCID 25517Ammonium ChlorideHCID 68499829benzyl 3-(7-bromo-3-methyl-1H-indol-6-ylmethoxy)-4-{4-[3-(2-methoxybenzyloxy)propoxy]phenyl}piperidine-1-carboxylate

Product 1

HCID 68501271benzyl 3-(7-bromo-1-cyanomethyl-3-methyl-1H-indol-6-ylmethoxy)-4-{4-[3-(2-methoxybenzyloxy)propoxy]phenyl}piperidine-1-carboxylate

Reagents, catalysts & solvents 2

HCID 67553Tetrabutylammonium IodideCatalystHCID 816462(1H)-Pyrimidinone, tetrahydro-1,3-dimethyl-Solvent

Conditions

Temperature
0 °C

Procedure

The solution of 3.38 g of benzyl 3-(7-bromo-3-methyl-1H-indol-6-ylmethoxy)-4-{4-[3-(2-methoxybenzyloxy)propoxy]phenyl}piperidine-1-carboxylate (Example 21b) in 46 ml of DMPU is admixed with stirring at 0° C. with 0.367 g of sodium hydride dispersion (60%). The mixture is stirred at 0° C. over 30 minutes and then admixed with 0.323 ml of chloroacetonitrile and 0.172 g of tetrabutylammonium iodide. The reaction mixture is stirred at room temperature over 16 hours, poured onto 1M ammonium chloride solution and extracted with tert-butyl methyl ether (2×300 ml). The organic phases are washed successively with water (300 ml) and brine (300 ml), dried over sodium sulphate, filtered and concentrated by evaporation. The title compound is obtained as a white foam from the residue by means of flash chromatography (SiO2 60F). Rf=0.33 (1:1 EtOAc-heptane); Rt=6.10.

Workup

  1. stirringThe reaction mixture is stirred at room temperature over 16 hours
  2. extractionextracted with tert-butyl methyl ether (2×300 ml)
  3. washThe organic phases are washed successively with water (300 ml) and brine (300 ml)
  4. dry with materialdried over sodium sulphate
  5. filtrationfiltered
  6. concentrationconcentrated by evaporation

Sources & evidence

ORD record
ord-3f95a6e8a441496295f034ff84a9e058
Source dataset
uspto-grants-2010_11
Patent number
US07842688B2

Linked notes

Loading…