Pyridine → (5R,9R)-5-(tert-butoxycarbonyl)-1-(9H-fluoren-9-yl)-3-oxo-2,11-dioxa-7-thia-4-azatricosan-9-yl dodecanoate

HRID 2205040ノート

反応式

HRID 2205040 の反応式
[CH:1]1[C:13]2[CH:12]([CH2:14][O:15][C:16]([NH:18][C@@H:19]([CH2:27][S:28][CH2:29][C@H:30]([OH:45])[CH2:31][O:32][CH2:33][CH2:34][CH2:35][CH2:36][CH2:37][CH2:38][CH2:39][CH2:40][CH2:41][CH2:42][CH2:43][CH3:44])[C:20]([O:22][C:23]([CH3:26])([CH3:25])[CH3:24])=[O:21])=[O:17])[C:11]3[C:6](=[CH:7][CH:8]=[CH:9][CH:10]=3)[C:5]=2[CH:4]=[CH:3][CH:2]=1.N1C=CC=CC=1.[C:52](Cl)(=[O:64])[CH2:53][CH2:54][CH2:55][CH2:56][CH2:57][CH2:58][CH2:59][CH2:60][CH2:61][CH2:62][CH3:63]>C(Cl)Cl>[C:52]([O:45][C@H:30]([CH2:31][O:32][CH2:33][CH2:34][CH2:35][CH2:36][CH2:37][CH2:38][CH2:39][CH2:40][CH2:41][CH2:42][CH2:43][CH3:44])[CH2:29][S:28][CH2:27][C@@H:19]([C:20]([O:22][C:23]([CH3:26])([CH3:25])[CH3:24])=[O:21])[NH:18][C:16](=[O:17])[O:15][CH2:14][CH:12]1[C:13]2[CH:1]=[CH:2][CH:3]=[CH:4][C:5]=2[C:6]2[C:11]1=[CH:10][CH:9]=[CH:8][CH:7]=2)(=[O:64])[CH2:53][CH2:54][CH2:55][CH2:56][CH2:57][CH2:58][CH2:59][CH2:60][CH2:61][CH2:62][CH3:63]

参加物

5

反応物 3

HCID 1049PyridineHCID 8166Dodecanoyl chlorideHCID 71294546(R)-tert-butyl 2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-3-(((R)-3-(dodecyloxy)-2-hydroxypropyl)thio)propanoate

生成物 1

HCID 71294515(5R,9R)-5-(tert-butoxycarbonyl)-1-(9H-fluoren-9-yl)-3-oxo-2,11-dioxa-7-thia-4-azatricosan-9-yl dodecanoate

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒2 回

実験手順

A solution (R)-tert-butyl 2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-3-(((R)-3-(dodecyloxy)-2-hydroxypropyl)thio)propanoate (1 eq) in DCM (0.1 M) was cooled in an ice bath. Pyridine (3.0 eq) was added followed by dodecanoyl chloride (3.0 eq). The reaction mixture was stirred for 10 minutes then warmed up to room temperature, and stirred for 2 hours. The reaction mixture was diluted with DCM, and washed with saturated aqueous NH4Cl. The aqueous phase was back extracted with DCM. The combined organic phases were washed with brine, dried over anhydrous Na2SO4 and concentrated en vaccuo. The resulting crude was purified by flash chromatography on a COMBIFLASH® system (ISCO) using 0-30% EtOAc/Hex to give the title product as a white solid.

後処理

  1. stirringstirred for 2 hours
  2. washwashed with saturated aqueous NH4Cl
  3. extractionThe aqueous phase was back extracted with DCM
  4. washThe combined organic phases were washed with brine
  5. dry with materialdried over anhydrous Na2SO4
  6. concentrationconcentrated en vaccuo
  7. customThe resulting crude was purified by flash chromatography on a COMBIFLASH® system (ISCO)

出典と根拠

ORDレコード
ord-3e68b7b3796a489e88d63bb594cc93e3
出典データセット
uspto-grants-2016_06
特許番号
US09365506B2

反応ノート

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