Pyridine → 4-[6-(4-Nitro-phenoxycarbonyloxy)-hexylcarbamoyloxy]-piperidine-1-carboxylic acid 4-phenoxyphenyl ester

HRID 618288노트

반응식

HRID 618288 반응식
[O:1]([C:8]1[CH:13]=[CH:12][C:11]([O:14][C:15]([N:17]2[CH2:22][CH2:21][CH:20]([O:23][C:24]([NH:26][CH2:27][CH2:28][CH2:29][CH2:30][CH2:31][CH2:32][OH:33])=[O:25])[CH2:19][CH2:18]2)=[O:16])=[CH:10][CH:9]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.N1C=CC=CC=1.Cl[C:41]([O:43][C:44]1[CH:49]=[CH:48][C:47]([N+:50]([O-:52])=[O:51])=[CH:46][CH:45]=1)=[O:42]>C(Cl)Cl>[O:1]([C:8]1[CH:13]=[CH:12][C:11]([O:14][C:15]([N:17]2[CH2:22][CH2:21][CH:20]([O:23][C:24](=[O:25])[NH:26][CH2:27][CH2:28][CH2:29][CH2:30][CH2:31][CH2:32][O:33][C:41]([O:43][C:44]3[CH:45]=[CH:46][C:47]([N+:50]([O-:52])=[O:51])=[CH:48][CH:49]=3)=[O:42])[CH2:19][CH2:18]2)=[O:16])=[CH:10][CH:9]=1)[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

참가 물질

5

반응물 3

HCID 1049PyridineHCID 821294-Nitrophenyl chloroformateHCID 537895824-[[[(6-Hydroxyhexyl)amino]-carbonyl]oxy]-1-piperidinecarboxylic acid 4-phenoxyphenyl ester

생성물 1

HCID 542367634-[6-(4-Nitro-phenoxycarbonyloxy)-hexylcarbamoyloxy]-piperidine-1-carboxylic acid 4-phenoxyphenyl ester수율 100.4%

시약·촉매·용매 1

HCID 6344Dichloromethane용매2회

실험 절차

A solution of the alcohol (40.0 g, 88 mmol) produced in Example 4 and pyridine (7.1 ml, 88 mmol) in 300 ml of methylene chloride was added under nitrogen dropwise over one hour to a solution of 4-nitrophenyl chloroformate (17.7 g, 88 mmol) in 300 ml of methylene chloride at ice bath temperature. The reaction was stirred at ice bath temperature for two hours and overnight at room temperature. The reaction was extracted one time with 1N HCl, multiple times with saturated Na2CO3, dried (MgSO4) and the solvent removed under reduced pressure to give 54.9 g of an off-white solid. Recrystallization from 1:1 ethyl acetatehexane gave 51.6 g (95%) of the title compound as a white crystalline solid, mp 117-120° C.

후처리

  1. customovernight
  2. customat room temperature
  3. extractionThe reaction was extracted one time with 1N HCl, multiple times with saturated Na2CO3
  4. dry with materialdried (MgSO4)
  5. customthe solvent removed under reduced pressure

출처 및 근거

ORD 기록
ord-802a19b88eea45a6a9e78983f4d34ed8
출처 데이터셋
uspto-grants-1999_09
특허 번호
US05952354

반응 노트

불러오는 중…