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Diisopropyl Ether → N2-[(9H-Fluoren-9-ylmethoxy)carbonyl]-N-(triphenylmethyl)-L-glutamine 2,3,4,5,6-pentafluorophenyl ester

HRID 1110197
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HRID 1110197 반응식
[NH:1]([C:30]([O:32][CH2:33][CH:34]1[C:46]2[C:41](=[CH:42][CH:43]=[CH:44][CH:45]=2)[C:40]2[C:35]1=[CH:36][CH:37]=[CH:38][CH:39]=2)=[O:31])[C@H:2]([C:27]([OH:29])=[O:28])[CH2:3][CH2:4][C:5](=[O:26])[NH:6][C:7]([C:20]1[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=1)([C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1)[C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=1.C(OC(C)C)(C)C.[F:54][C:55]1[C:60](O)=[C:59]([F:62])[C:58]([F:63])=[C:57]([F:64])[C:56]=1[F:65].C1(N=C=NC2CCCCC2)CCCCC1>C(OCC)(=O)C>[NH:1]([C:30]([O:32][CH2:33][CH:34]1[C:46]2[C:41](=[CH:42][CH:43]=[CH:44][CH:45]=2)[C:40]2[C:35]1=[CH:36][CH:37]=[CH:38][CH:39]=2)=[O:31])[C@H:2]([C:27]([O:29][C:60]1[C:55]([F:54])=[C:56]([F:65])[C:57]([F:64])=[C:58]([F:63])[C:59]=1[F:62])=[O:28])[CH2:3][CH2:4][C:5](=[O:26])[NH:6][C:7]([C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1)([C:8]1[CH:9]=[CH:10][CH:11]=[CH:12][CH:13]=1)[C:20]1[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=1
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

6

반응물 4

HCID 7914Diisopropyl EtherHCID 10868DicyclohexylcarbodiimideHCID 13041PentafluorophenolHCID 10919157(2S)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4-[(triphenylmethyl)carbamoyl]butanoic acid

생성물 1

HCID 11297250N2-[(9H-Fluoren-9-ylmethoxy)carbonyl]-N-(triphenylmethyl)-L-glutamine 2,3,4,5,6-pentafluorophenyl ester

시약·촉매·용매

1
HCID 8857Ethyl Acetate용매

실험 절차

1.5 g (2.27 mmol) of Fmoc-Gln(Trt)-OH×0.5 diisopropyl ether and 0.46 g (2.5 mmol) of pentafluoro-phenol are dissolved in 35 ml of ethyl acetate, cooled to 0° and, while stirring, 0.52 g (2.5 mmol) of dicyclohexylcarbodiimide is added. The mixture is stirred at 0° for 1 hour and at room temperature for 3 hours, and insoluble material is filtered off and washed with tetrahydrofuran. The filtrate is evaporated to dryness, and the residue is dissolved in 30 ml of tetrahydrofuran. Slow addition of petroleum ether while stirring results in crystallization of Fmoc-Gln(Trt)-OPfp; m.p. 185°-187°, [α]D20 =-16.4° (THF).

후처리

  1. temperaturecooled to 0°
  2. stirringThe mixture is stirred at 0° for 1 hour and at room temperature for 3 hours
  3. filtrationinsoluble material is filtered off
  4. washwashed with tetrahydrofuran
  5. customThe filtrate is evaporated to dryness
  6. dissolutionthe residue is dissolved in 30 ml of tetrahydrofuran
  7. additionaddition of petroleum ether
  8. stirringwhile stirring

출처 및 근거

ORD 기록
ord-b4cbe7779ee6426e84775aaa1ac41808
출처 데이터셋
uspto-grants-1994_06
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US05324833

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