3-(S)-t-butyloxycarbonylamino-1-t-butyloxycarbonylmethyl-2,3,4,5-tetrahydro-1H-[1]benzazepin-2,5-dione → 3-(S)-t-butyloxycarbonylamino-1-t-butyloxycarbonylmethyl-5-hydroxy-2,3,4,5-tetrahydro-1H-[1]benzazepin-2-one

HRID 647864Notes

Reaction equation

HRID 647864 reaction equation
[C:1]([O:5][C:6]([NH:8][C@H:9]1[CH2:15][C:14](=[O:16])[C:13]2[CH:17]=[CH:18][CH:19]=[CH:20][C:12]=2[N:11]([CH2:21][C:22]([O:24][C:25]([CH3:28])([CH3:27])[CH3:26])=[O:23])[C:10]1=[O:29])=[O:7])([CH3:4])([CH3:3])[CH3:2]>C(O)C.[Pt]=O>[C:1]([O:5][C:6]([NH:8][C@H:9]1[CH2:15][CH:14]([OH:16])[C:13]2[CH:17]=[CH:18][CH:19]=[CH:20][C:12]=2[N:11]([CH2:21][C:22]([O:24][C:25]([CH3:28])([CH3:27])[CH3:26])=[O:23])[C:10]1=[O:29])=[O:7])([CH3:4])([CH3:3])[CH3:2]

Participants

4

Reactant 1

HCID 100926163-(S)-t-butyloxycarbonylamino-1-t-butyloxycarbonylmethyl-2,3,4,5-tetrahydro-1H-[1]benzazepin-2,5-dione

Product 1

HCID 132435293-(S)-t-butyloxycarbonylamino-1-t-butyloxycarbonylmethyl-5-hydroxy-2,3,4,5-tetrahydro-1H-[1]benzazepin-2-one

Reagents, catalysts & solvents 2

HCID 82844Platinum oxide (PtO)CatalystHCID 702EthanolSolvent

Procedure

A solution of 3-(S)-t-butyloxycarbonylamino-1-t-butyloxycarbonylmethyl-2,3,4,5-tetrahydro-1H-[1]benzazepin-2,5-dione (8.0 g) in ethanol (500 ml) containing platinum oxide (800 mg) was hydrogenated at atmospheric pressure and at room temperature for two hours. The catalyst was filtered off and the filtrate evaporated to give 3-(S)-t-butyloxycarbonylamino-1-t-butyloxycarbonylmethyl-5-hydroxy-2,3,4,5-tetrahydro-1H-[1]benzazepin-2-one, [α]D =-173° (c=1.8 in DMF).

Workup

  1. filtrationThe catalyst was filtered off
  2. customthe filtrate evaporated

Sources & evidence

ORD record
ord-8875dbdf71c547bcafba04707ece3909
Source dataset
uspto-grants-1983_10
Patent number
US04410520

Reaction notes

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