2,6-Lutidine → {[6-(4-Hydroxy-6-methoxy-7-methyl-3-oxo-1,3-dihydro-isobenzofuran-5-yl)-4-methyl-hex-4-enoylamino]methyl}-phosphonic acid

HRID 33680Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 33680
C([O:3][P:4]([CH2:9][NH:10][C:11](=[O:38])[CH2:12][CH2:13][C:14]([CH3:37])=[CH:15][CH2:16][C:17]1[C:18]([O:30]CC[Si](C)(C)C)=[C:19]2[C:23](=[C:24]([CH3:28])[C:25]=1[O:26][CH3:27])[CH2:22][O:21][C:20]2=[O:29])(=[O:8])[O:5]CC)C.C[Si](Br)(C)C.N1C(C)=CC=CC=1C>C(#N)C>[OH:30][C:18]1[C:17]([CH2:16][CH:15]=[C:14]([CH3:37])[CH2:13][CH2:12][C:11]([NH:10][CH2:9][P:4](=[O:3])([OH:8])[OH:5])=[O:38])=[C:25]([O:26][CH3:27])[C:24]([CH3:28])=[C:23]2[C:19]=1[C:20](=[O:29])[O:21][CH2:22]2

Komponenten

5

Edukt 3

HCID 79372,6-LutidineHCID 76113BromotrimethylsilaneHCID 76541034({-6-[6-Methoxy-7-methyl-3-oxo-4-(2-trimethylsilanyl-ethoxy)-1,3-dihydro-isobenzofuran-5-yl]-4-methyl-hex-4-enoylamino}-methyl)-phosphonic acid diethyl ester

Produkt 1

HCID 67010439{[6-(4-Hydroxy-6-methoxy-7-methyl-3-oxo-1,3-dihydro-isobenzofuran-5-yl)-4-methyl-hex-4-enoylamino]methyl}-phosphonic acidAusbeute 9 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6342AcetonitrileLösungsmittel

Versuchsvorschrift

To a solution of ({6-[6-methoxy-7-methyl-3-oxo-4-(2-trimethylsilanyl-ethoxy)-1,3-dihydro-isobenzofuran-5-yl]-4-methyl-hex-4-enoylamino}-methyl)-phosphonic acid diethyl ester (40 mg, 0.07 mmol) in acetonitrile (1 mL) was added TMSBr (91 μL, 0.7 mmol) followed by 2,6-lutidine (81.5 μL, 0.7 mmol). The reaction was allowed to proceed overnight when it was completed as judged by LCMS. The reaction mixture was quenched with MeOH and concentrated to dryness. The residue was purified by preparative reverse-phase HPLC to afford 2.6 mg (9%) of desired product as a white solid. 1H NMR (300 MHz, CD3OD) δ 1.67 (s, 3H), 2.17 (m, 5H), 2.30-2.46 (m, 2H), 2.80-2.86 (m, 2H), 3.55 (m, 2H), 3.82 (s, 3H), 5.26 (s, 3H) ppm; 31p (121.4 MHz, CD3OD) δ 10.27 ppm; MS (m/z) 412 [M−H]−, 414 [M+H]+.

Aufarbeitung

  1. customThe reaction mixture was quenched with MeOH
  2. concentrationconcentrated to dryness
  3. customThe residue was purified by preparative reverse-phase HPLC

Quellen und Nachweise

ORD-Eintrag
ord-8623825020704f1a95a8d15f89cddae9
Quelldatensatz
uspto-grants-2008_09
Patentnummer
US07429565B2

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