1,2-Dichloroethane → HCID 53834349, compound

HRID 1858574Notes

Reaction equation

HRID 1858574 reaction equation
[NH2:1][CH2:2][C:3]1[CH:29]=[CH:28][CH:27]=[CH:26][C:4]=1[CH2:5][O:6][CH:7]1[CH:12]([C:13]2[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=2)[CH2:11][CH2:10][N:9]([C:19]([O:21][C:22]([CH3:25])([CH3:24])[CH3:23])=[O:20])[CH2:8]1.C(N(CC)CC)C.[C:37](O)(=[O:44])[C:38]1[CH:43]=[CH:42][CH:41]=[N:40][CH:39]=1.C(Cl)CCl>C(Cl)Cl.CN(C)C1C=CN=CC=1>[C:13]1([CH:12]2[CH2:11][CH2:10][N:9]([C:19]([O:21][C:22]([CH3:24])([CH3:25])[CH3:23])=[O:20])[CH2:8][CH:7]2[O:6][CH2:5][C:4]2[CH:26]=[CH:27][CH:28]=[CH:29][C:3]=2[CH2:2][NH:1][C:37]([C:38]2[CH:39]=[N:40][CH:41]=[CH:42][CH:43]=2)=[O:44])[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=1

Participants

7

Reactant 4

HCID 111,2-DichloroethaneHCID 938Nicotinic AcidHCID 8471TriethylamineHCID 54186768HCID 54186768, compound

Product 1

HCID 53834349HCID 53834349, compoundYield 53%

Reagents, catalysts & solvents 2

HCID 142844-(Dimethylamino)pyridineCatalystHCID 6344DichloromethaneSolvent2×

Procedure

A solution of 150 mg (0.38 mmol) of tert-butyl (3RS,4RS)-3-(2-aminomethyl-benzyloxy)-4-phenyl-piperidine-1-carboxylate in 2 ml of methylene chloride was treated with 229 mg (2.26 mmol) of triethylamine, 139 mg (1.05 mmol) of nicotinic acid, 216 mg (1.13 mmol) of EDC and 10 mg (0.08 mmol) of 4-dimethylaminopyridine and the mixture was stirred at room temperature for 24 hours. Thereafter, the reaction solution was diluted with methylene chloride and washed with a saturated sodium hydrogen carbonate solution. The organic phase was separated, dried over sodium sulphate and evaporated under reduced pressure. The residue was chromatographed on silica gel using ethyl acetate as the eluent. There were obtained 100 mg (53% of theory) of tert-butyl (3RS,4RS)-4-phenyl-3-(2-{[(pyridine-3-carbonyl)-amino]-methyl}-benzyloxy)-piperidine-1-carboxylate as a colourless solid; MS: 502 (M+H)+.

Workup

  1. washwashed with a saturated sodium hydrogen carbonate solution
  2. customThe organic phase was separated
  3. dry with materialdried over sodium sulphate
  4. customevaporated under reduced pressure
  5. customThe residue was chromatographed on silica gel

Sources & evidence

ORD record
ord-c781f49af91b4351aaf48736124e7c00
Source dataset
uspto-grants-2000_11
Patent number
US06150526

Reaction notes

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