Acetic Acid → (2-{2-Ethyl-4-[6-ethyl-7-methyl-3-oxo-4-(2-trimethylsilanyl-ethoxy)-1,3-dihydro-isobenzofuran-5-yl]-but-2-enyl amino}-ethyl)-phosphonic acid diethyl ester

HRID 272206Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 272206
[CH2:1]([C:3](=[CH:6][CH2:7][C:8]1[C:9]([O:21][CH2:22][CH2:23][Si:24]([CH3:27])([CH3:26])[CH3:25])=[C:10]2[C:14](=[C:15]([CH3:19])[C:16]=1[CH2:17][CH3:18])[CH2:13][O:12][C:11]2=[O:20])[CH:4]=O)[CH3:2].C(O)(=O)C(O)=O.[CH2:34]([O:36][P:37]([CH2:42][CH2:43][NH2:44])(=[O:41])[O:38][CH2:39][CH3:40])[CH3:35].C(O)(=O)C.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+]>CN(C=O)C>[CH2:39]([O:38][P:37]([CH2:42][CH2:43][NH:44][CH2:4][C:3]([CH2:1][CH3:2])=[CH:6][CH2:7][C:8]1[C:9]([O:21][CH2:22][CH2:23][Si:24]([CH3:25])([CH3:27])[CH3:26])=[C:10]2[C:14](=[C:15]([CH3:19])[C:16]=1[CH2:17][CH3:18])[CH2:13][O:12][C:11]2=[O:20])(=[O:41])[O:36][CH2:34][CH3:35])[CH3:40]

Komponenten

6

Edukt 4

HCID 176Acetic AcidHCID 2733595Diethyl (2-aminoethyl)phosphonate oxalateHCID 5049666Sodium triacetoxyborohydrideHCID 765410332-Ethyl-4-[6-ethyl-7-methyl-3-oxo-4-(2-trimethylsilanyl-ethoxy)-1,3-dihydro-isobenzofuran-5-yl]-but-2-enal

Produkt 1

HCID 72563629(2-{2-Ethyl-4-[6-ethyl-7-methyl-3-oxo-4-(2-trimethylsilanyl-ethoxy)-1,3-dihydro-isobenzofuran-5-yl]-but-2-enyl amino}-ethyl)-phosphonic acid diethyl esterAusbeute 66,1 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

2-Ethyl-4-[6-ethyl-7-methyl-3-oxo-4-(2-trimethylsilanyl-ethoxy)-1,3-dihydro-isobenzofuran-5-yl]-but-2-enal (26.6 mg, 0.068 mmol) and aminoethylphosphonic acid diethylester oxalate salt (20.4 mg, 0.075 mmol) were dissolved in DMF (0.8 mL). Acetic acid (20.5 mg, 0.342 mmol) was added, followed by sodium triacetoxyborohydride (27.6 mg, 0.137 mmol). After 8 hours, the crude reaction mixture was purified by RP-HPLC (eluent: water/MeCN) to provide 24.9 mg (65%) of the desired product after lyophilization. 1H NMR (300 MHz, CDCl3): δ=0.05 (s, 9H), 1.10-1.24 (m, 8H), 1.35 (t, J=7.5 Hz, 6H), 2.19 (s, 3H), 2.23 (m, 2H), 2.35 (q, J=7.8 Hz, 2H), 2.70 (q, J=7.2 Hz, 2H), 3.25 (m, 2H), 3.56 (m, 4H), 4.15 (m, 4H), 4.29 (m, 2H), 5.15 (s, 2H), 5.47 (m, 1H) ppm; 31P NMR (121 MHz, CDCl3): δ=27.71 ppm; MS=554 [M++1].

Aufarbeitung

  1. customthe crude reaction mixture
  2. customwas purified by RP-HPLC (eluent: water/MeCN)

Quellen und Nachweise

ORD-Eintrag
ord-5d262de66c7f4ef8b7815123dd90a734
Quelldatensatz
uspto-grants-2008_11
Patentnummer
US07452901B2

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