5-fluoro-3-(1,2,3,6-tetrahydropyridin-4-yl)-1H-indole → HCID 9986927, compound

HRID 2357479Notes

Reaction equation

HRID 2357479 reaction equation
C1([O:7][C:8](=O)[NH:9][CH2:10][CH:11]2[CH2:16][CH2:15][C:14]([N:23]([CH3:25])[CH3:24])([C:17]3[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=3)[CH2:13][CH2:12]2)C=CC=CC=1.[F:27][C:28]1[CH:29]=[C:30]2[C:34](=[CH:35][CH:36]=1)[NH:33][CH:32]=[C:31]2[C:37]1[CH2:38][CH2:39][NH:40][CH2:41][CH:42]=1>O1CCOCC1>[CH3:24][N:23]([CH3:25])[C:14]1([C:17]2[CH:18]=[CH:19][CH:20]=[CH:21][CH:22]=2)[CH2:15][CH2:16][CH:11]([CH2:10][NH:9][C:8]([N:40]2[CH2:39][CH:38]=[C:37]([C:31]3[C:30]4[C:34](=[CH:35][CH:36]=[C:28]([F:27])[CH:29]=4)[NH:33][CH:32]=3)[CH2:42][CH2:41]2)=[O:7])[CH2:12][CH2:13]1

Participants

4

Reactant 2

HCID 113449595-fluoro-3-(1,2,3,6-tetrahydropyridin-4-yl)-1H-indoleHCID 67531743(4-Dimethylamino-4-phenylcyclohexylmethyl)-carbamic acid phenyl ester

Product 1

HCID 9986927HCID 9986927, compoundYield 15.1%

Reagents, catalysts & solvents 1

HCID 312751,4-DioxaneSolvent

Procedure

The diastereoisomer mixture of (4-dimethylamino-4-phenylcyclohexylmethyl)-carbamic acid phenyl ester (700 mg, 1.98 mmole) was added to a solution of 5-fluoro-3-(1,2,3,6-tetrahydropyridine-4-yl)-1H-indole (428.2 mg, 1.98 mmole) in dioxane (10 ml). The reaction mixture was then boiled under reflux for 12 hours. The reaction mixture was slightly cloudy at RT. The reaction mixture was worked up by distilling off the solvent. The residue contained, apart from phenol, also the two diastereoisomers of 4-(5-fluoro-1H-indol-3-yl)-3,6-dihydro-2H-pyridine-1-carboxylic acid-(4-dimethylamino-4-phenylcyclohexylmethyl)-amide. The diastereoisomers were separated and purified by flash chromatography on silica gel (50 g). Methanol/EE (1:1; 1000 ml) was used as eluent. The non-polar diastereoisomer of 4-(5-fluoro-1H-indol-3-yl)-3,6-dihydro-2H-pyridine-1-carboxylic acid-(4-dimethylamino-4-phenylcyclohexyl-methyl)-amide (300 mg, pale yellow, m.p. 105°-109° C., 32%) and the polar diastereoisomer of 4-(5-fluoro-1H-indol-3-yl)-3,6-dihydro-2H-pyridine-1-carboxylic acid-(4-dimethylamino-4-phenylcyclohexylmethyl)-amide (142 mg, 15%) were thereby obtained in pure form.

Workup

  1. temperatureunder reflux for 12 hours
  2. customwas slightly cloudy at RT
  3. distillationby distilling off the solvent
  4. customThe diastereoisomers were separated
  5. custompurified by flash chromatography on silica gel (50 g)

Sources & evidence

ORD record
ord-ff2acc8b867f4dd4b3c1514f46184bcf
Source dataset
uspto-grants-2010_07
Patent number
US07759385B2

Reaction notes

Loading…