Methyl iodide → {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

HRID 32990노트

반응식

HRID 32990 반응식
[CH2:1]([O:3][P:4]([CH:9]([C:35]#[N:36])[CH2:10][C:11]([CH3:34])=[CH:12][CH2:13][C:14]1[C:15]([O:27][CH2:28][CH2:29][Si:30]([CH3:33])([CH3:32])[CH3:31])=[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][CH2:6][CH3:7])[CH3:2].[CH3:37][Si]([N-][Si](C)(C)C)(C)C.[Na+].IC>C1COCC1>[CH2:1]([O:3][P:4]([C:9]([C:35]#[N:36])([CH3:37])[CH2:10][C:11]([CH3:34])=[CH:12][CH2:13][C:14]1[C:15]([O:27][CH2:28][CH2:29][Si:30]([CH3:31])([CH3:32])[CH3:33])=[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][CH2:6][CH3:7])[CH3:2]

참가 물질

5

반응물 3

HCID 6328Methyl iodideHCID 2724254Sodium bis(trimethylsilyl)amideHCID 72563597(1-Cyano-5-[6-methoxy-7-methyl-3-oxo-4-(2-trimethylsilanyl-ethoxy)-1,3-dihydro-isobenzofuran-5-yl]-3-methyl-pent-3-enyl}-phosphonic acid diethyl ester

생성물 1

HCID 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 Ester수율 23%

시약·촉매·용매 1

HCID 8028Tetrahydrofuran용매

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]-3-methyl-pent-3-enyl}-phosphonic acid diethyl ester (45 mg, 0.084 mmol) in THF (0.5 mL) was added sodium bis(trimethysilyl)amide (1.0 M, 1.13 mL, 1.15 mmol). After stirring for 20 minutes, iodomethane (52 μL, 0.84 mmol) was added dropwise and the resulting mixture was allowed to stir at room temperature for 2 hours. The reaction mixture was quenched with saturated aqueous ammonium chloride and extracted with ethyl acetate. The organic layer was dried over sodium sulfate and concentrated to dryness. The residue was purified by RP HPLC using a C18 column with a gradient of H2O, 0.1% TFA-acetonitrile, 0.1% TFA to afford 6.6 mg (23%) of the desired product. 1H NMR (300 MHz, CDCl3) δ 0.00 (s, 9H), 1.16 (dd, J=7, 8 Hz, 2H), 1.31 (t, 6H), 1.38 (d, 3H), 1.92 (s, 3H), 2.17 (s, 3H), 2.23 (m, 1H), 2.65 (m, 1H), 3.30-3.42 (m, 2H), 3.73 (s, 3H), 4.14-4.27 (m, 6H), 5.08 (s, 2H), 5.28 (t, J=7.2 Hz, 1H) ppm; 31P (121.4 MHz, CDCl3) δ 22.26 ppm; MS (m/z) 574 [M+Na]+.

후처리

  1. stirringto stir at room temperature for 2 hours
  2. customThe reaction mixture was quenched with saturated aqueous ammonium chloride
  3. extractionextracted with ethyl acetate
  4. dry with materialThe organic layer was dried over sodium sulfate
  5. concentrationconcentrated to dryness
  6. customThe residue was purified by RP HPLC

출처 및 근거

ORD 기록
ord-75d468baedd3471098fb0554a1e9637a
출처 데이터셋
uspto-grants-2008_09
특허 번호
US07427636B2

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