HCID 15860250, compound → HCID 10624435, compound
Reaction equation
[S:1]([O:5][C:6]1[CH:23]=[CH:22][C:21]2[C@@H:20]3[C@H:11]([C@H:12]4[C@@:16]([CH2:18][CH2:19]3)([CH3:17])[C:15]([C:24](=[O:33])[NH:25][CH2:26][CH2:27][CH2:28][CH2:29][CH2:30][CH2:31][CH3:32])=[CH:14][CH2:13]4)[CH2:10][CH2:9][C:8]=2[CH:7]=1)(=[O:4])(=[O:3])[NH2:2]>CCOC(C)=O.C(O)C.[Pt](=O)=O>[S:1]([O:5][C:6]1[CH:23]=[CH:22][C:21]2[C@@H:20]3[C@H:11]([C@H:12]4[C@@:16]([CH2:18][CH2:19]3)([CH3:17])[C@@H:15]([C:24](=[O:33])[NH:25][CH2:26][CH2:27][CH2:28][CH2:29][CH2:30][CH2:31][CH3:32])[CH2:14][CH2:13]4)[CH2:10][CH2:9][C:8]=2[CH:7]=1)(=[O:4])(=[O:3])[NH2:2]Participants
5
Reactant 1
Product 1
Reagents, catalysts & solvents 3
Procedure
A solution comprising about 210 mg of compound 5a (m=6) in about 6 ml of EtOAc and about 2 ml of ethanol (EtOH, 2 ml) was stirred over about 40 mg of platinum (IV) oxide (PtO2) under an atmosphere of hydrogen for 2.5 h. The catalyst was removed by filtration and the filtrate concentrated. The residue was purified by silica gel chromatography (Petroleum ether: EtOAc, 1:1), yielding pure compound 6a (201 mg, 95.3%).
Workup
- customThe catalyst was removed by filtration
- concentrationthe filtrate concentrated
- customThe residue was purified by silica gel chromatography (Petroleum ether: EtOAc, 1:1)
Sources & evidence
- ORD record
- ord-8fbd13cbfadd41c8bd23bd96ab02929b
- Source dataset
- uspto-grants-1999_03
- Patent number
- US05880115
Reaction notes
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