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2,6-Lutidine → [1-Cyano-5-(4-hydroxy-6-methoxy-7-methyl-3-oxo-1,3-dihydro-isobenzofuran-5-yl)-1,3-dimethyl-pent-3-enyl]-phosphonic Acid

HRID 2114230
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인쇄 미리보기

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HRID 2114230 반응식
C([O:3][P:4]([C:9]([C:36]#[N:37])([CH3:35])[CH2:10][C:11]([CH3:34])=[CH:12][CH2:13][C:14]1[C:15]([O:27]CC[Si](C)(C)C)=[C:16]2[C:20](=[C:21]([CH3:25])[C:22]=1[O:23][CH3:24])[CH2:19][O:18][C:17]2=[O:26])(=[O:8])[O:5]CC)C.C[Si](Br)(C)C.N1C(C)=CC=CC=1C>CN(C=O)C.C(Cl)Cl>[C:36]([C:9]([P:4](=[O:3])([OH:5])[OH:8])([CH3:35])[CH2:10][C:11]([CH3:34])=[CH:12][CH2:13][C:14]1[C:15]([OH:27])=[C:16]2[C:20](=[C:21]([CH3:25])[C:22]=1[O:23][CH3:24])[CH2:19][O:18][C:17]2=[O:26])#[N:37]
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

6

반응물 3

HCID 79372,6-LutidineHCID 76113BromotrimethylsilaneHCID 72563641{1-Cyano-5-[6-methoxy-7-methyl-3-oxo-4-(2-trimethylsilanyl-ethoxy)-1,3-dihydro-isobenzofuran-5-yl]-1,3-dimethyl-pent-3-enyl}-phosphonic Acid Diethyl Ester

생성물 1

HCID 67010476[1-Cyano-5-(4-hydroxy-6-methoxy-7-methyl-3-oxo-1,3-dihydro-isobenzofuran-5-yl)-1,3-dimethyl-pent-3-enyl]-phosphonic Acid수율 33%

시약·촉매·용매 2

HCID 6228
Dimethylformamide
용매
HCID 6344Dichloromethane용매

실험 절차

To a solution of {1-cyano-5-[6-methoxy-7-methyl-3-oxo-4-(2-trimethylsilanyl-ethoxy)-1,3-dihydro-isobenzofuran-5-yl]-1,3-dimethyl-pent-3-enyl}-phosphonic acid diethyl ester (18 mg, 0.04 mmol) in DMF (0.5 mL) and DCM (0.5 mL) was added TMSBr (51 μL, 0.4 mmol) and 2,6-lutidine (46 μL, 0.4 mmol). The reaction solution was allowed stir at room temperature overnight before quenching with MeOH. The reaction mixture was dried under reduced pressure and the residue was purified by RP HPLC using a C18 column with a gradient of H2O, 0.1% TFA-acetonitrile, 0.1% TFA to provide 4.5 mg (33%) of the desired product. 1H NMR (300 MHz, CD3OD) δ 1.37 (d, 3H), 1.87 (s, 3H), 2.13 (s, 3H), 2.26 (m, 1H), 2.64 (m, 1H), 3.39 (m, 2H), 3.75 (s, 3H), 5.18 (s, 2H), 5.34 (m, 1H) ppm; 31P (121.4 MHz, CD3OD) δ 21.47 ppm; MS (m/z) 422 [M−H]−, 424 [M+H]+.

후처리

  1. custombefore quenching with MeOH
  2. customThe reaction mixture was dried under reduced pressure
  3. customthe residue was purified by RP HPLC

출처 및 근거

ORD 기록
ord-986a4087f5cd4faa9b6e61e2368a8a68
출처 데이터셋
uspto-grants-2008_10
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07432261B2

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