17-Ethyl-1-hydroxy-14-(tert-butyldimethylsiloxy)-12-[2'-(4"-(2"'-benzyloxyethoxy)-3"-methoxycyclohexyl)-1'-methylvinyl]-23,25-dimethoxy-13,19,21,27-tetramethyl-11,28-dioxa-4-azatricyclo[22.3.1.04,9]octacos-18-ene-2,3,10,16-tetraone → 17-Ethyl-1,14-dihydroxy-12-[2'-(4"-(2"'-benzyloxyethoxy)-3"-methoxycyclohexyl)-1'-methyl-vinyl]-23,25-dimethoxy-13,19,21,27-tetra-methyl-11,28-dioxa-4-azatricyclo[22.3.1.04,9]octacos-18-ene-2,3,10,16-tetraone

HRID 1734362Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1734362
[CH2:1]([CH:3]1[CH:29]=[C:28]([CH3:30])[CH2:27][CH:26]([CH3:31])[CH2:25][CH:24]([O:32][CH3:33])[CH:23]2[O:34][C:19]([OH:38])([CH:20]([CH3:37])[CH2:21][CH:22]2[O:35][CH3:36])[C:18](=[O:39])[C:17](=[O:40])[N:16]2[CH:11]([CH2:12][CH2:13][CH2:14][CH2:15]2)[C:10](=[O:41])[O:9][CH:8]([C:42]([CH3:63])=[CH:43][CH:44]2[CH2:49][CH2:48][CH:47]([O:50][CH2:51][CH2:52][O:53][CH2:54][C:55]3[CH:60]=[CH:59][CH:58]=[CH:57][CH:56]=3)[CH:46]([O:61][CH3:62])[CH2:45]2)[CH:7]([CH3:64])[CH:6]([O:65][Si](C(C)(C)C)(C)C)[CH2:5][C:4]1=[O:73])[CH3:2]>C(#N)C.C(OCC)(=O)C>[CH2:1]([CH:3]1[CH:29]=[C:28]([CH3:30])[CH2:27][CH:26]([CH3:31])[CH2:25][CH:24]([O:32][CH3:33])[CH:23]2[O:34][C:19]([OH:38])([CH:20]([CH3:37])[CH2:21][CH:22]2[O:35][CH3:36])[C:18](=[O:39])[C:17](=[O:40])[N:16]2[CH:11]([CH2:12][CH2:13][CH2:14][CH2:15]2)[C:10](=[O:41])[O:9][CH:8]([C:42]([CH3:63])=[CH:43][CH:44]2[CH2:49][CH2:48][CH:47]([O:50][CH2:51][CH2:52][O:53][CH2:54][C:55]3[CH:56]=[CH:57][CH:58]=[CH:59][CH:60]=3)[CH:46]([O:61][CH3:62])[CH2:45]2)[CH:7]([CH3:64])[CH:6]([OH:65])[CH2:5][C:4]1=[O:73])[CH3:2]

Komponenten

4

Edukt 1

HCID 8674961217-Ethyl-1-hydroxy-14-(tert-butyldimethylsiloxy)-12-[2'-(4"-(2"'-benzyloxyethoxy)-3"-methoxycyclohexyl)-1'-methylvinyl]-23,25-dimethoxy-13,19,21,27-tetramethyl-11,28-dioxa-4-azatricyclo[22.3.1.04,9]octacos-18-ene-2,3,10,16-tetraone

Produkt 1

HCID 5717759717-Ethyl-1,14-dihydroxy-12-[2'-(4"-(2"'-benzyloxyethoxy)-3"-methoxycyclohexyl)-1'-methyl-vinyl]-23,25-dimethoxy-13,19,21,27-tetra-methyl-11,28-dioxa-4-azatricyclo[22.3.1.04,9]octacos-18-ene-2,3,10,16-tetraoneAusbeute 44,9 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 6342AcetonitrileLösungsmittel2×HCID 8857Ethyl AcetateLösungsmittel

Versuchsvorschrift

To a solution of 17-ethyl-1-hydroxy-14-(tert-butyldimethylsiloxy)-12-[2'-(4"-(2'"-benzyloxyethoxy)-3"-methoxycyclohexyl)-1'-methylvinyl]-23,25-dimethoxy-13,19,21,27-tetramethyl-11,28-dioxa-4-azatricyclo[22.3.1.04,9 ]octacos-18-ene-2,3,10,16-tetraone-(10 mg) in acetonitrile (500 μl) was added a solution of 2% HF in aqueous acetonitrile (200 μl), and the mixture stirred at room temperature. After 2.5 hours, the solution was diluted with ethyl acetate, extracted with saturated sodium bicarbonate solution and the organic phase dried over magnesium sulfate. Purification of the concentrate by flash chromatography on silica gel (ethyl acetate:hexane (1:2)+1% methanol) gave the title compound (4 mg).

Aufarbeitung

  1. extractionextracted with saturated sodium bicarbonate solution
  2. dry with materialthe organic phase dried over magnesium sulfate
  3. customPurification of the
  4. concentrationconcentrate by flash chromatography on silica gel (ethyl acetate:hexane (1:2)+1% methanol)

Quellen und Nachweise

ORD-Eintrag
ord-e73eb727b0754a0eb40d322fa98852c9
Quelldatensatz
uspto-grants-1996_07
Patentnummer
US05532248

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