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 482744Notes

Reaction equation

HRID 482744 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-942046ae7ce84776af2ce5e396467a97
Source dataset
uspto-grants-1986_03
Patent number
US04575503

Reaction notes

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