1,1'-Carbonyldiimidazole → HCID 59708795, 화합물

HRID 1097301노트

반응식

HRID 1097301 반응식
C(N1C=CN=C1)(N1C=CN=C1)=O.[C:13]([O:17][C:18]([NH:20][CH2:21][CH2:22][CH2:23][CH2:24][N:25]1[CH2:30][CH2:29][N:28]([CH2:31][CH2:32][CH2:33][CH2:34][C:35]([OH:37])=O)[CH2:27][CH2:26]1)=[O:19])([CH3:16])([CH3:15])[CH3:14].[C:38]([N:45]1[CH2:50][CH2:49][NH:48][CH2:47][CH2:46]1)([O:40][C:41]([CH3:44])([CH3:43])[CH3:42])=[O:39]>ClCCl>[C:41]([O:40][C:38]([N:45]1[CH2:50][CH2:49][N:48]([C:35](=[O:37])[CH2:34][CH2:33][CH2:32][CH2:31][N:28]2[CH2:27][CH2:26][N:25]([CH2:24][CH2:23][CH2:22][CH2:21][NH:20][C:18]([O:17][C:13]([CH3:14])([CH3:15])[CH3:16])=[O:19])[CH2:30][CH2:29]2)[CH2:47][CH2:46]1)=[O:39])([CH3:44])([CH3:42])[CH3:43]

참가 물질

5

반응물 3

HCID 682631,1'-CarbonyldiimidazoleHCID 143452tert-Butyl piperazine-1-carboxylateHCID 59708794HCID 59708794, 화합물

생성물 1

HCID 59708795HCID 59708795, 화합물

시약·촉매·용매 1

HCID 6344Dichloromethane용매

실험 절차

1,1′-Carbonyldiimidazole (129 mg, 0.796 mmol) was added to a solution of 5-[4-(4-tert-butoxycarbonylaminobutyl)piperazin-1-yl]pentanoic acid (111) (219 mg, 0.613 mmol) in anhydrous dichloromethane (8 mL) and the mixture was stirred at room temperature for 2 hours. N-Boc piperazine (148 mg, 0.796 mmol) was then added in one portion and the reaction mixture was stirred at room temperature for an additional 16 hours. The mixture was then concentrated under reduced pressure, and the resulting residue was purified by Biotage silica gel column chromatography using methanol/dichloromethane (gradient 0% to 2%) to give 4-{5-[4-(4-tert-butoxycarbonylaminobutyl)piperazin-1-yl]pentanoyl}piperazine-1-carboxylic acid tert-butyl ester 112 as a viscous, yellow oil (309 mg, 96%): 1H NMR (500 MHz, CDCl3) δ 1.44 (s, 9H), 1.48 (s, 9H), 1.55 (m, 6H), 1.66 (m, 2H), 2.35 (m, 8H), 2.48 (m, 6H), 3.11 (m, 2H), 3.40 (m, 2H), 3.44 (m, 4H), 3.58 (m, 2H), 5.30 (br, 1H). m/z (ESI) 526 [C27H51N5O5+H]+.

후처리

  1. stirringthe reaction mixture was stirred at room temperature for an additional 16 hours
  2. concentrationThe mixture was then concentrated under reduced pressure
  3. customthe resulting residue was purified by Biotage silica gel column chromatography

출처 및 근거

ORD 기록
ord-b3237dafee7c450e969b43f7562c7c55
출처 데이터셋
uspto-grants-2012_03
특허 번호
US08143256B2

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