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Tert-butyl (3-bromo-2-chloro-5-cyanophenyl)(4-methoxybenzyl)carbamate → Tert-butyl 3-(3-((tert-butoxycarbonyl)(4-methoxybenzyl)amino)-2-chloro-5-cyanophenyl)azetidine-1-carboxylate

HRID 1430897
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인쇄 미리보기

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HRID 1430897 반응식
Br[C:2]1[C:3]([Cl:27])=[C:4]([N:10]([CH2:18][C:19]2[CH:24]=[CH:23][C:22]([O:25][CH3:26])=[CH:21][CH:20]=2)[C:11](=[O:17])[O:12][C:13]([CH3:16])([CH3:15])[CH3:14])[CH:5]=[C:6]([C:8]#[N:9])[CH:7]=1.[I-].[C:29]([O:33][C:34]([N:36]1[CH2:39][CH:38]([Zn+])[CH2:37]1)=[O:35])([CH3:32])([CH3:31])[CH3:30]>CN(C)C(=O)C.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.Cl[Pd]Cl.[Fe+2].[Cu]I>[C:13]([O:12][C:11]([N:10]([CH2:18][C:19]1[CH:24]=[CH:23][C:22]([O:25][CH3:26])=[CH:21][CH:20]=1)[C:4]1[C:3]([Cl:27])=[C:2]([CH:38]2[CH2:37][N:36]([C:34]([O:33][C:29]([CH3:32])([CH3:31])[CH3:30])=[O:35])[CH2:39]2)[CH:7]=[C:6]([C:8]#[N:9])[CH:5]=1)=[O:17])([CH3:16])([CH3:15])[CH3:14]
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참가 물질

6

반응물 2

HCID 86708662Tert-butyl (3-bromo-2-chloro-5-cyanophenyl)(4-methoxybenzyl)carbamateHCID 178452187HCID 178452187, 화합물

생성물 1

HCID 89919370Tert-butyl 3-(3-((tert-butoxycarbonyl)(4-methoxybenzyl)amino)-2-chloro-5-cyanophenyl)azetidine-1-carboxylate

시약·촉매·용매 3

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)촉매
HCID 44119782
Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)
촉매
HCID 31374Dimethylacetamide용매2회

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온도
80 °C

실험 절차

A mixture of tert-butyl (3-bromo-2-chloro-5-cyanophenyl)(4-methoxybenzyl)carbamate (1 g, 1.882 mmol), dichloro[1,1′-bis(diphenylphosphino)ferrocene]palladium(II) (0.129 g, 0.188 mmol), and copper(I) iodide (0.072 g, 0.376 mmol) in N,N-Dimethylacetamide (0.6 mL) in a dry microwave vial was evacuated and backfilled with N2 for 3 times. (1-(tert-butoxycarbonyl)azetidin-3-yl)zinc(II) iodide (5.94 mL, 5.64 mmol, approximately 0.95 M solution in N,N-dimethylacetamide prepared as described in the Journal of Organic Chemistry, 2004, 69, 5120) was then added. The mixture was evacuated and backfilled with N2 one more time and then heated at 80° C. for overnight. After cooling to RT, the reaction was partitioned between EtOAc and sat. aq. NH4Cl solution. This was left stirring for 30 min. The aqueous phase was extracted with EtOAc and the combined organic phases were washed with brine and dried with sodium sulfate. Removal of the solvents followed by silica gel chromatography eluting with hexane containing 5 to 15% EtOAc to afford tert-butyl 3-(3-((tert-butoxycarbonyl)(4-methoxybenzyl)amino)-2-chloro-5-cyanophenyl)azetidine-1-carboxylate (0.98 g).

후처리

  1. customwas evacuated
  2. additionwas then added
  3. customThe mixture was evacuated
  4. temperatureAfter cooling to RT
  5. customthe reaction was partitioned between EtOAc and sat. aq. NH4Cl solution
  6. waitThis was left
  7. extractionThe aqueous phase was extracted with EtOAc
  8. washthe combined organic phases were washed with brine
  9. dry with materialdried with sodium sulfate
  10. customRemoval of the solvents
  11. washeluting with hexane containing 5 to 15% EtOAc

출처 및 근거

ORD 기록
ord-ebeaefbb38364232961c081719e72fb3
출처 데이터셋
uspto-grants-2015_01
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08940736B2

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