Triphenylphosphine → (S)-Tert-butyl 2-(3'-chlorobiphenyl-4-yl)-1-(1-(2-cyanoethyl)-1H-tetrazol-5-yl)ethylcarbamate

HRID 333336노트

반응식

HRID 333336 반응식
[Cl:1][C:2]1[CH:3]=[C:4]([C:8]2[CH:13]=[CH:12][C:11]([CH2:14][C@H:15]([NH:23][C:24](=[O:30])[O:25][C:26]([CH3:29])([CH3:28])[CH3:27])[C:16]([NH:18][CH2:19][CH2:20][C:21]#[N:22])=O)=[CH:10][CH:9]=2)[CH:5]=[CH:6][CH:7]=1.C1C=CC(P(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.CC(OC(/N=N/C(OC(C)C)=O)=O)C.C[Si]([N:68]=[N+:69]=[N-:70])(C)C>C1COCC1>[Cl:1][C:2]1[CH:3]=[C:4]([C:8]2[CH:13]=[CH:12][C:11]([CH2:14][C@H:15]([NH:23][C:24](=[O:30])[O:25][C:26]([CH3:29])([CH3:28])[CH3:27])[C:16]3[N:18]([CH2:19][CH2:20][C:21]#[N:22])[N:70]=[N:69][N:68]=3)=[CH:10][CH:9]=2)[CH:5]=[CH:6][CH:7]=1

참가 물질

6

반응물 4

HCID 11776TriphenylphosphineHCID 78378AzidotrimethylsilaneHCID 5363146Diisopropyl azodicarboxylateHCID 68748130(S)-Tert-butyl 3-(3'-chlorobiphenyl-4-yl)-1-(2-cyanoethylamino)-1-oxopropan-2-ylcarbamate

생성물 1

HCID 68747779(S)-Tert-butyl 2-(3'-chlorobiphenyl-4-yl)-1-(1-(2-cyanoethyl)-1H-tetrazol-5-yl)ethylcarbamate수율 85%

시약·촉매·용매 1

HCID 8028Tetrahydrofuran용매

실험 절차

To a solution of (S)-tert-butyl 3-(3′-chlorobiphenyl-4-yl)-1-(2-cyanoethylamino)-1-oxopropan-2-ylcarbamate (1.07 g, 2.500 mmol) in THF (50 ml) at room temperature was added Ph3P (1.640 g, 6.25 mmol), and the mixture was stirred at room temperature for 10 minutes. Then, to the mixture at 0° C. was added DIAD (1.215 ml, 6.25 mmol) and 2 minutes later was slowly added trimethylsilyl azide (0.828 ml, 6.25 mmol). The resulting light yellow suspension was slowly warmed up to room temperature and stirred overnight. The reaction mixture was concentrated under reduced pressure. The obtained residue was purified by flash chromatography (silica gel, 25 to 50% EtOAc/Heptane) and gave the title compound: 423 mg (yield: 85%). LCMS (condition B): 453.2 (M+1); retention time=1.23 min.

후처리

  1. temperatureThe resulting light yellow suspension was slowly warmed up to room temperature
  2. stirringstirred overnight
  3. concentrationThe reaction mixture was concentrated under reduced pressure
  4. customThe obtained residue was purified by flash chromatography (silica gel, 25 to 50% EtOAc/Heptane)

출처 및 근거

ORD 기록
ord-a6bf42e3a97e41debc9c3e08e4a2cc06
출처 데이터셋
uspto-grants-2014_11
특허 번호
US08877815B2

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