Pyridine → n-Fmoc-o-t-butyl-l-tyrosyl fluoride

HRID 7231

반응식

HRID 7231 반응식
[C:1]([NH:18][C@H:19]([C:32]([OH:34])=O)[CH2:20][C:21]1[CH:26]=[CH:25][C:24]([O:27][C:28]([CH3:31])([CH3:30])[CH3:29])=[CH:23][CH:22]=1)([O:3][CH2:4][CH:5]1[C:17]2[C:12](=[CH:13][CH:14]=[CH:15][CH:16]=2)[C:11]2[C:6]1=[CH:7][CH:8]=[CH:9][CH:10]=2)=[O:2].N1C=CC=CC=1.N1C(F)=NC(F)=NC=1[F:43]>ClCCl>[C:1]([NH:18][C@H:19]([C:32]([F:43])=[O:34])[CH2:20][C:21]1[CH:26]=[CH:25][C:24]([O:27][C:28]([CH3:31])([CH3:30])[CH3:29])=[CH:23][CH:22]=1)([O:3][CH2:4][CH:5]1[C:17]2[C:12](=[CH:13][CH:14]=[CH:15][CH:16]=2)[C:11]2[C:6]1=[CH:7][CH:8]=[CH:9][CH:10]=2)=[O:2]

참가 물질

5

반응물 3

HCID 1049PyridineHCID 12664Cyanuric fluorideHCID 10895791Fmoc-L-Tyr(tBu)-OH

생성물 1

HCID 14777695n-Fmoc-o-t-butyl-l-tyrosyl fluoride

시약·촉매·용매 1

HCID 6344Dichloromethane용매

실험 절차

N-FMOC-O-t-Butyl-L-tyrosine (5 g, 10.88 mmol) (Bachem) was dissolved in dichloromethane (50 mL). Pyridine (0.88 mL, 10.88 mmol) (Aldrich) and cyanuric fluoride (1.47 g, 10.88 mmol) (Aldrich) were successively added at room temperature and the mixture was stirred for 5 hours. Ice cold water (100 mL) was added and the resulting slurry was filtered. The filtrate was poured into a separatory funnel and the layers were separated. The organic layer was dried over anhydrous sodium sulfate, filtered and concentrated under reduced pressure to afford N-FMOC-O-t-butyl-L-tyrosyl fluoride as a white powder. (Yield 4.43 g, 88%).

후처리

  1. filtrationthe resulting slurry was filtered
  2. additionThe filtrate was poured into a separatory funnel
  3. customthe layers were separated
  4. dry with materialThe organic layer was dried over anhydrous sodium sulfate
  5. filtrationfiltered
  6. concentrationconcentrated under reduced pressure

출처 및 근거

ORD 기록
ord-b0b0ead597824592b4231310bdcdb388
출처 데이터셋
uspto-grants-2006_08
특허 번호
US07084270B2

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