Benzenesulfonyl chloride → tert-butyl (3RS,4RS)-4-[4-(phenylsulfonyl-amino-methyl)-phenyl]-3-(naphthalen-2-ylmethoxy)-piperidine-1-carboxylate

HRID 1858594Notes

Reaction equation

HRID 1858594 reaction equation
[NH2:1][CH2:2][C:3]1[CH:8]=[CH:7][C:6]([CH:9]2[CH2:14][CH2:13][N:12]([C:15]([O:17][C:18]([CH3:21])([CH3:20])[CH3:19])=[O:16])[CH2:11][CH:10]2[O:22][CH2:23][C:24]2[CH:33]=[CH:32][C:31]3[C:26](=[CH:27][CH:28]=[CH:29][CH:30]=3)[CH:25]=2)=[CH:5][CH:4]=1.C(N(CC)CC)C.[C:41]1([S:47](Cl)(=[O:49])=[O:48])[CH:46]=[CH:45][CH:44]=[CH:43][CH:42]=1>C(Cl)Cl>[C:41]1([S:47]([CH:2]([NH2:1])[C:3]2[CH:8]=[CH:7][C:6]([CH:9]3[CH2:14][CH2:13][N:12]([C:15]([O:17][C:18]([CH3:21])([CH3:19])[CH3:20])=[O:16])[CH2:11][CH:10]3[O:22][CH2:23][C:24]3[CH:33]=[CH:32][C:31]4[C:26](=[CH:27][CH:28]=[CH:29][CH:30]=4)[CH:25]=3)=[CH:5][CH:4]=2)(=[O:49])=[O:48])[CH:46]=[CH:45][CH:44]=[CH:43][CH:42]=1

Participants

5

Reactant 3

HCID 7369Benzenesulfonyl chlorideHCID 8471TriethylamineHCID 53800110tert-butyl (3RS,4RS)-4-(4-aminomethyl-phenyl)-3-(naphthalen-2-ylmethoxy)-piperidine-1-carboxylate

Product 1

HCID 86604394tert-butyl (3RS,4RS)-4-[4-(phenylsulfonyl-amino-methyl)-phenyl]-3-(naphthalen-2-ylmethoxy)-piperidine-1-carboxylateYield 76.3%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Conditions

Temperature
0 °C

Procedure

A solution of 47 mg (0.105 mmol) of tert-butyl (3RS,4RS)-4-(4-aminomethyl-phenyl)-3-(naphthalen-2-ylmethoxy)-piperidine-1-carboxylate in 2 ml of methylene chloride was treated with 18 μl (12.7 mg, 0.126 mmol, 1.2 eq.) of triethylamine and cooled to 0° C. 15 μl (20.4 mg, 0.116 mmol, 1.1 eq.) of benzenesulphonyl chloride were added dropwise, the mixture was warmed to room temperature and stirred for 1 hour. The reaction mixture was partitioned between methylene chloride and 5% sodium hydrogen carbonate solution, the organic phase was dried over magnesium sulphate and finally the solvent was removed under reduced pressure. There were obtained 47 mg of crude tert-butyl (3RS,4RS)-4-[4-(phenylsulphonyl-amino-methyl)-phenyl]-3-(naphthalen-2-ylmethoxy)-piperidine-1-carboxylate, which was used in the following step without further purification and characterization.

Workup

  1. temperaturethe mixture was warmed to room temperature
  2. customThe reaction mixture was partitioned between methylene chloride and 5% sodium hydrogen carbonate solution
  3. dry with materialthe organic phase was dried over magnesium sulphate
  4. customfinally the solvent was removed under reduced pressure

Sources & evidence

ORD record
ord-bac6a8e5848a48f883bd542414cc26da
Source dataset
uspto-grants-2000_11
Patent number
US06150526

Reaction notes

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