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Ethyl Acetate → 1H-Pyrrole-2-carboxylic acid ((7S,10S,13S)-7-formyl-10-isopropyl-9,12-dioxo-2-oxa-8,11-diaza-bicyclo[13.2.2]nonadeca-1(18),15(19),16-trien-13-yl)-amide

HRID 2371329
ノート
印刷プレビュー

反応式

HRID 2371329 の反応式
C[O:2][C:3]([C@H:5]1[NH:21][C:20](=[O:22])[C@H:19]([CH:23]([CH3:25])[CH3:24])[NH:18][C:17](=[O:26])[C@@H:16]([NH:27][C:28]([C:30]2[NH:31][CH:32]=[CH:33][CH:34]=2)=[O:29])[CH2:15][C:14]2=[CH:35][CH:36]=[C:11]([CH:12]=[CH:13]2)[O:10][CH2:9][CH2:8][CH2:7][CH2:6]1)=O.CC(C[AlH]CC(C)C)C.CCOC(C)=O>C(Cl)Cl>[CH:3]([C@H:5]1[NH:21][C:20](=[O:22])[C@H:19]([CH:23]([CH3:25])[CH3:24])[NH:18][C:17](=[O:26])[C@@H:16]([NH:27][C:28]([C:30]2[NH:31][CH:32]=[CH:33][CH:34]=2)=[O:29])[CH2:15][C:14]2=[CH:13][CH:12]=[C:11]([CH:36]=[CH:35]2)[O:10][CH2:9][CH2:8][CH2:7][CH2:6]1)=[O:2]
参加物反応条件実験手順後処理出典と根拠反応ノート

参加物

5

反応物 3

HCID 8857Ethyl AcetateHCID 14487Diisobutylaluminum hydrideHCID 66846964(7S,10S,13S)-10-Isopropyl-9,12-dioxo-13-[(1H-pyrrole-2-carbonyl)-amino]-2-oxa-8,11-diaza-bicyclo[13.2.2]nonadeca-1(18),15(19),16-triene-7-carboxylic acid methyl ester

生成物 1

HCID 866502451H-Pyrrole-2-carboxylic acid ((7S,10S,13S)-7-formyl-10-isopropyl-9,12-dioxo-2-oxa-8,11-diaza-bicyclo[13.2.2]nonadeca-1(18),15(19),16-trien-13-yl)-amide

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒

反応条件

温度
-78 °C

実験手順

Ester 51 (45 mg) was dissolved in DCM (6 mL) under an atmosphere of argon. The reaction was cooled to −78° C. To the resultant solution DIBAL (0.5 mL) was added dropwise. This was stirred for 2 h before being allowed to warm to rt overnight. The reaction mixture was partitioned between EtOAc and 1M hydrochloric acid. The aqueous phase was extracted again with EtOAc and the combined organic extracts were dried (MgSO4), filtered and concentrated in vacuo. Purification was achieved using flash chromatography, eluting with a gradient of 1/1 EtOAc/(50/70) petroleum ether to EtOAc to yield a light brown solid, 14 mg, 33%. Rf=0.25 (1/1 EtOAc/(50/70) petroleum ether).

後処理

  1. temperatureto warm to rt overnight
  2. customThe reaction mixture was partitioned between EtOAc and 1M hydrochloric acid
  3. extractionThe aqueous phase was extracted again with EtOAc
  4. dry with materialthe combined organic extracts were dried (MgSO4)
  5. filtrationfiltered
  6. concentrationconcentrated in vacuo
  7. customPurification
  8. washeluting with a gradient of 1/1 EtOAc/(50/70) petroleum ether to EtOAc
  9. customto yield a light brown solid, 14 mg, 33%

出典と根拠

ORDレコード
ord-ab217bbab05b4c32a1382387a05c8810
出典データセット
uspto-grants-2014_04
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08710178B2

反応ノート

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