3-Amino-2,3,4,5-tetrahydro-2-oxo-1H-1-benzazepin-1-t-butyl acetate → HCID 70396000, compound

HRID 1194978Notes

Reaction equation

HRID 1194978 reaction equation
[NH2:1][CH:2]1[CH2:8][CH2:7][C:6]2[CH:9]=[CH:10][CH:11]=[CH:12][C:5]=2[N:4]([CH2:13][C:14]([O:16][C:17]([CH3:20])([CH3:19])[CH3:18])=[O:15])[C:3]1=O.[CH2:22]([O:29][C:30]([N:32]1[CH2:37][CH2:36][CH:35]([CH2:38][CH2:39][CH2:40][CH2:41][CH:42](OS(C)(=O)=O)[C:43]([O:45][CH2:46][CH3:47])=[O:44])[CH2:34][CH2:33]1)=[O:31])[C:23]1[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=1>C(OCC)(=O)C>[CH2:22]([O:29][C:30]([N:32]1[CH2:33][CH2:34][CH:35]([CH2:38][CH2:39][CH2:40][CH2:41][CH:42]([NH:1][CH:2]2[CH2:8][CH2:7][C:6]3[CH:9]=[CH:10][CH:11]=[CH:12][C:5]=3[N:4]([CH2:13][C:14]([O:16][C:17]([CH3:20])([CH3:19])[CH3:18])=[O:15])[CH2:3]2)[C:43]([O:45][CH2:46][CH3:47])=[O:44])[CH2:36][CH2:37]1)=[O:31])[C:23]1[CH:24]=[CH:25][CH:26]=[CH:27][CH:28]=1

Participants

4

Reactant 2

HCID 36741653-Amino-2,3,4,5-tetrahydro-2-oxo-1H-1-benzazepin-1-t-butyl acetateHCID 13652732Ethyl 6-(1-benzyloxycarbonyl-4-piperidyl)-2-methanesulfonyloxyhexanoate

Product 1

HCID 70396000HCID 70396000, compoundYield 52.1%

Reagents, catalysts & solvents 1

HCID 8857Ethyl AcetateSolvent

Conditions

Temperature
90 °C

Procedure

A mixture of 1.75 g of tert-butyl 3-amino-2-oxo-2,3,4,5-tetrahydro-1H-1-benzazepine-1-acetate and 1.1 g of ethyl 6-(1-benzyloxycarbonyl-4-piperidyl)-2-methanesulfonyloxyhexanoate is heated at 90° C. for 24 hours. After cooling, the reaction solution is diluted with 200 ml of ethyl acetate, and the resulting solution is washed with 30 ml of 5% aqueous phosphoric acid and water, successively, and dried over anhydrous magnesium sulfate. After the solvent is distilled off under reduced pressure, the residue is separated and purified by silica gel colum chromatography (hexane:ethyl acetate=2:1), whereby the first fraction yields 0.8 g of tert-butyl 3(RS)-[5-(1-benzyloxycarbonyl-4-piperidyl)-1(SR)-ethoxycarbonylpentyl]amino-2,3,4,5-tetrahydro-1H-1-benzazepine-1-acetate as a colorless oil.

Workup

  1. temperatureAfter cooling
  2. washthe resulting solution is washed with 30 ml of 5% aqueous phosphoric acid and water
  3. dry with materialsuccessively, and dried over anhydrous magnesium sulfate
  4. distillationAfter the solvent is distilled off under reduced pressure
  5. customthe residue is separated
  6. custompurified by silica gel colum chromatography (hexane:ethyl acetate=2:1), whereby the first fraction

Sources & evidence

ORD record
ord-345a11a116504ae48cc235d9c73427e3
Source dataset
uspto-grants-1989_03
Patent number
US04816466

Reaction notes

Loading…