Toluene → (14R,18R)-14-amino-18-(dodecanoyloxy)-13,21-dioxo-3,6,9,20-tetraoxa-16-thia-12-azadotriacontylphosphonic acid diethyl ester
Reaction equation
C1C2C(COC([NH:18][C@@H:19]([CH2:42][S:43][CH2:44][C@H:45]([O:61][C:62](=[O:74])[CH2:63][CH2:64][CH2:65][CH2:66][CH2:67][CH2:68][CH2:69][CH2:70][CH2:71][CH2:72][CH3:73])[CH2:46][O:47][C:48](=[O:60])[CH2:49][CH2:50][CH2:51][CH2:52][CH2:53][CH2:54][CH2:55][CH2:56][CH2:57][CH2:58][CH3:59])[C:20](=[O:41])[NH:21][CH2:22][CH2:23][O:24][CH2:25][CH2:26][O:27][CH2:28][CH2:29][O:30][CH2:31][CH2:32][P:33](=[O:40])([O:37][CH2:38][CH3:39])[O:34][CH2:35][CH3:36])=O)C3C(=CC=CC=3)C=2C=CC=1.N1CCCCC1.C1(C)C=CC=CC=1>C(#N)C>[CH2:35]([O:34][P:33]([CH2:32][CH2:31][O:30][CH2:29][CH2:28][O:27][CH2:26][CH2:25][O:24][CH2:23][CH2:22][NH:21][C:20](=[O:41])[C@@H:19]([NH2:18])[CH2:42][S:43][CH2:44][C@H:45]([O:61][C:62](=[O:74])[CH2:63][CH2:64][CH2:65][CH2:66][CH2:67][CH2:68][CH2:69][CH2:70][CH2:71][CH2:72][CH3:73])[CH2:46][O:47][C:48](=[O:60])[CH2:49][CH2:50][CH2:51][CH2:52][CH2:53][CH2:54][CH2:55][CH2:56][CH2:57][CH2:58][CH3:59])(=[O:40])[O:37][CH2:38][CH3:39])[CH3:36]Participants
5
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Conditions
- Temperature
- 25 °C
Procedure
To a solution of diethyl (14R,18R)-14-(((9H-fluoren-9-yl)methoxy)carbonylamino)-18-(dodecanoyloxy)-13,21-dioxo-3,6,9,20-tetraoxa-16-thia-12-azadotriacontylphosphonate (1 eq) was added 20% piperidine (50 eq) in acetonitrile. The resulting mixture was stirred at 25° C. until the deprotection completed. To the mixture was added toluene and then concentrated en vaccuo. The crude mixture was purified by flash chromatography on a COMBIFLASH® system (ISCO) using 100% EtOAc then 0-10% MeOH/DCM to give the product as colorless oil.
Workup
- concentrationconcentrated en vaccuo
- customThe crude mixture was purified by flash chromatography on a COMBIFLASH® system (ISCO)
Sources & evidence
- ORD record
- ord-3b4a89a20f534a34ac9fc0f43a54f08c
- Source dataset
- uspto-grants-2014_08
- Patent number
- US08808703B2
Reaction notes
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