Piperidine → (15R,19R)-tert-butyl 15-amino-19-(dodecyloxy)-14-oxo-4,7,10,21-tetraoxa-17-thia-13-azatritriacontan-1-oate

HRID 2407942Notes

Reaction equation

C1C2C(COC([NH:18][C@@H:19]([CH2:41][S:42][CH2:43][C@H:44]([O:59][CH2:60][CH2:61][CH2:62][CH2:63][CH2:64][CH2:65][CH2:66][CH2:67][CH2:68][CH2:69][CH2:70][CH3:71])[CH2:45][O:46][CH2:47][CH2:48][CH2:49][CH2:50][CH2:51][CH2:52][CH2:53][CH2:54][CH2:55][CH2:56][CH2:57][CH3:58])[C:20](=[O:40])[NH:21][CH2:22][CH2:23][O:24][CH2:25][CH2:26][O:27][CH2:28][CH2:29][O:30][CH2:31][CH2:32][C:33]([O:35][C:36]([CH3:39])([CH3:38])[CH3:37])=[O:34])=O)C3C(=CC=CC=3)C=2C=CC=1.N1CCCCC1>C1COCC1.CN(C=O)C>[NH2:18][C@@H:19]([CH2:41][S:42][CH2:43][C@H:44]([O:59][CH2:60][CH2:61][CH2:62][CH2:63][CH2:64][CH2:65][CH2:66][CH2:67][CH2:68][CH2:69][CH2:70][CH3:71])[CH2:45][O:46][CH2:47][CH2:48][CH2:49][CH2:50][CH2:51][CH2:52][CH2:53][CH2:54][CH2:55][CH2:56][CH2:57][CH3:58])[C:20](=[O:40])[NH:21][CH2:22][CH2:23][O:24][CH2:25][CH2:26][O:27][CH2:28][CH2:29][O:30][CH2:31][CH2:32][C:33]([O:35][C:36]([CH3:37])([CH3:38])[CH3:39])=[O:34]

Participants

Conditions

Temperature: 25 °C

Procedure

To a solution of (15R,19R)-tert-butyl 15-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-19-(dodecyloxy)-14-oxo-4,7,10,21-tetraoxa-17-thia-13-azatritriacontan-1-oate (1 eq) was added 20% piperidine (50 eq) in 4:1 THF/DMF. The resulting solution was stirred for 15 minutes at 25° C. and then concentrated en vaccuo. The crude mixture was purified by flash chromatography on a COMBIFLASH® system (ISCO) using 0-10% MeOH/DCM to give the title product as a white solid.

Workup

concentrationconcentrated en vaccuo
customThe crude mixture was purified by flash chromatography on a COMBIFLASH® system (ISCO)

Sources & evidence

ORD record: ord-0fd77262e5b7438c8d3278ec5e7958c8
Source dataset: uspto-grants-2014_08
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08808703B2

Reaction notes

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