4-Methylmorpholine → HCID 12020545, 화합물

HRID 2298447노트

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HRID 2298447 반응식
ClC(OCC(C)C)=O.[NH:9]([C:29]([O:31][C:32]([CH3:35])([CH3:34])[CH3:33])=[O:30])[C@H:10]([C:26]([OH:28])=O)[CH2:11][CH2:12][CH2:13][CH2:14][NH:15][C:16]([O:18][CH2:19][C:20]1[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=1)=[O:17].CN1CCOCC1.[NH2:43][C@H:44]([C:49]([NH:51][C@H:52]([C:57]([O:59][CH3:60])=[O:58])[CH2:53][CH:54]([CH3:56])[CH3:55])=[O:50])[CH2:45][CH:46]([CH3:48])[CH3:47].Cl>C(OCC)(=O)C>[NH:9]([C:29]([O:31][C:32]([CH3:35])([CH3:34])[CH3:33])=[O:30])[C@H:10]([C:26]([NH:43][C@H:44]([C:49]([NH:51][C@H:52]([C:57]([O:59][CH3:60])=[O:58])[CH2:53][CH:54]([CH3:55])[CH3:56])=[O:50])[CH2:45][CH:46]([CH3:47])[CH3:48])=[O:28])[CH2:11][CH2:12][CH2:13][CH2:14][NH:15][C:16]([O:18][CH2:19][C:20]1[CH:21]=[CH:22][CH:23]=[CH:24][CH:25]=1)=[O:17]

참가 물질

6

반응물 4

HCID 79724-Methylmorpholine2회HCID 62365Isobutyl chloroformateHCID 2724765Boc-Lys(Z)-OHHCID 15598024L-Leucine, L-leucyl-, methyl ester, hydrochloride (1:1)

생성물 1

HCID 12020545HCID 12020545, 화합물수율 90.2%

시약·촉매·용매 1

HCID 8857Ethyl Acetate용매7회

실험 절차

Isobutyl chloroformate (13.66 g, 100 mmol) was added dropwise over 15 min at −15 to −10° C. to a solution of Boc-Lys(Z)-OH (38.04 g, 100 mmol) in ethyl acetate (200 g). Another portion of ethyl acetate was added (10 g) and the mixture was stirred for 15 min. 4-Methylmorpholine (10.12 g, 100 mmol) was added dropwise over 15 min at −15 to −10° C., followed by an additional portion of ethyl acetate (10.0 g) and the resulting mixture was stirred for 2 h. In a separate reaction vessel 4-methylmorpholine (10.12 g, 100 mmol) was added dropwise over 15 min, to a solution of H-Leu-Leu-OMe.HCl (29.48 g, 100 mmol) in ethyl acetate (200.0 g) at −23 to −10° C. An additional portion of ethyl acetate (10.0 g) was added followed by the addition of the formed anhydride over 30 to 45 min at a temperature of −8 to −10° C. Another portion of ethyl acetate (30.0 g) was added and the resulting mixture was stirred for 1.5 h. Ethyl acetate (50.00 g) was added, the solution was filtered and the resulting organic filtrate was concentrated in vacuo. The resulting solid was recrystallized from petroleum ether (bp 100 to 125) to give Boc-Lys(Z)-Leu-Leu-OMe (55.9 g, 90.2%).

후처리

  1. stirringthe resulting mixture was stirred for 2 h
  2. stirringthe resulting mixture was stirred for 1.5 h
  3. filtrationthe solution was filtered
  4. concentrationthe resulting organic filtrate was concentrated in vacuo
  5. customThe resulting solid was recrystallized from petroleum ether (bp 100 to 125)

출처 및 근거

ORD 기록
ord-908db946ee53428a8bfbc69fd4395598
출처 데이터셋
uspto-grants-2002_12
특허 번호
US06492490B1

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