碘苯二乙酸 → 10-Bromo-2-carbamoyl-5,6-dihydrobenzo[f]imidazo[1,2-d][1,4]oxazepine-6-carboxylic acid

HRID 575283笔记

反应方程式

HRID 575283 反应方程式
CC1(C)N([O])C(C)(C)CCC1.C(OI(C1C=CC=CC=1)OC(=O)C)(=[O:14])C.[Br:27][C:28]1[CH:29]=[CH:30][C:31]2[O:37][CH:36]([CH2:38][OH:39])[CH2:35][N:34]3[CH:40]=[C:41]([C:43]([NH2:45])=[O:44])[N:42]=[C:33]3[C:32]=2[CH:46]=1>ClCCl.O>[Br:27][C:28]1[CH:29]=[CH:30][C:31]2[O:37][CH:36]([C:38]([OH:14])=[O:39])[CH2:35][N:34]3[CH:40]=[C:41]([C:43](=[O:44])[NH2:45])[N:42]=[C:33]3[C:32]=2[CH:46]=1

参与物

6

反应物 3

HCID 76724碘苯二乙酸HCID 27241262,2,6,6-四甲基哌啶氧化物HCID 8669331210-Bromo-6-(hydroxymethyl)-5,6-dihydrobenzo[f]imidazo[1,2-d][1,4]oxazepine-2-carboxamide

产物 1

HCID 8669331110-Bromo-2-carbamoyl-5,6-dihydrobenzo[f]imidazo[1,2-d][1,4]oxazepine-6-carboxylic acid收率 73.1%

试剂、催化剂与溶剂 2

HCID 962聚[6-[4-(4-氰基苯基)苯氧基]己基甲基丙烯酸酯]溶剂HCID 6344二氯甲烷溶剂

实验过程

TEMPO (17 mg, 0.11 mmol, 0.33 equiv) and PhI(OAc)2 (255 mg, 0.79 mmol, 2.37 equiv) were added to a stirred suspension of 10-bromo-6-(hydroxymethyl)-5,6-dihydrobenzo[f]imidazo[1,2-d][1,4]oxazepine-2-carboxamide (113 mg, 0.33 mmol, 1.00 equiv) in dichloromethane (4 mL) and water (0.8 mL) at 0° C. After 30 min the resulting mixture was warmed to room temperature and stirred overnight. The reaction was then quenched by the addition sodium bicarbonate and washed with dichloromethane. The pH value of the aqueous solution was adjusted to 2 by 2N hydrogen chloride. The aqueous layer was extracted with ethyl acetate, dried over anhydrous sodium sulfate, and concentrated under vacuum. This resulted in to 85 mg (crude) of 10-bromo-2-carbamoyl-5,6-dihydrobenzo[f]imidazo[1,2-d][1,4]oxazepine-6-carboxylic acid as a white solid.

后处理

  1. customThe reaction was then quenched by the addition sodium bicarbonate
  2. washwashed with dichloromethane
  3. extractionThe aqueous layer was extracted with ethyl acetate
  4. dry with materialdried over anhydrous sodium sulfate
  5. concentrationconcentrated under vacuum

来源与证据

ORD记录
ord-6f0846b897a44948b3136671d9a08c40
来源数据集
uspto-grants-2015_05
专利号
US09034866B2

反应笔记

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