1,1'-Carbonyldiimidazole → (2S,4S)-4-(4-Methoxybenzylthio)-2-[3-methyl-4-(4-nitrobenzyloxycarbonyl)piperazin-1-ylcarbonyl]-1-(4-nitrobenzyloxycarbonyl)pyrrolidine
Reaction equation
[CH3:1][O:2][C:3]1[CH:31]=[CH:30][C:6]([CH2:7][S:8][C@@H:9]2[CH2:13][N:12]([C:14]([O:16][CH2:17][C:18]3[CH:23]=[CH:22][C:21]([N+:24]([O-:26])=[O:25])=[CH:20][CH:19]=3)=[O:15])[C@H:11]([C:27]([OH:29])=O)[CH2:10]2)=[CH:5][CH:4]=1.C1N=CN(C(N2C=NC=C2)=O)C=1.[CH3:44][CH:45]1[CH2:50][NH:49][CH2:48][CH2:47][N:46]1[C:51]([O:53][CH2:54][C:55]1[CH:60]=[CH:59][C:58]([N+:61]([O-:63])=[O:62])=[CH:57][CH:56]=1)=[O:52]>>[CH3:1][O:2][C:3]1[CH:31]=[CH:30][C:6]([CH2:7][S:8][C@@H:9]2[CH2:13][N:12]([C:14]([O:16][CH2:17][C:18]3[CH:19]=[CH:20][C:21]([N+:24]([O-:26])=[O:25])=[CH:22][CH:23]=3)=[O:15])[C@H:11]([C:27]([N:49]3[CH2:48][CH2:47][N:46]([C:51]([O:53][CH2:54][C:55]4[CH:56]=[CH:57][C:58]([N+:61]([O-:63])=[O:62])=[CH:59][CH:60]=4)=[O:52])[CH:45]([CH3:44])[CH2:50]3)=[O:29])[CH2:10]2)=[CH:5][CH:4]=1Participants
4
Reactant 3
Product 1
Procedure
Following a procedure similar to that described in Preparation 1(i), but using 3.06 g of (2S,4S)-4-(4-methoxybenzylthio)-1-(4-nitrobenzyloxycarbonyl)-2-pyrrolidinecarboxylic acid, 1.34 g of N,N-carbonyldiimidazole and 2.30 g of 2-methyl-1-(4-nitrobenzyloxycarbonyl)piperazine, 4.07 g of the title compound were obtained.
Sources & evidence
- ORD record
- ord-b7d0b05b032441d3958f46bf69970073
- Source dataset
- uspto-grants-1998_01
- Patent number
- US05712267
Reaction notes
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