2-Nitrobenzenesulfonyl chloride → 17-Ethyl-1-hydroxy-12-[2'-(4"-(o-nitrophenylsulfonyloxy)-3"-propyloxycyclohexyl)-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
Reaktionsgleichung
[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]([CH3:55])=[CH:43][CH:44]2[CH2:49][CH2:48][CH:47]([OH:50])[CH:46]([O:51][CH2:52][CH2:53][CH3:54])[CH2:45]2)[CH:7]([CH3:56])[CH2:6][CH2:5][C:4]1=[O:57])[CH3:2].C(N(C(C)C)CC)(C)C.[N+:67]([C:70]1[CH:75]=[CH:74][CH:73]=[CH:72][C:71]=1[S:76](Cl)(=[O:78])=[O:77])([O-:69])=[O:68]>C(Cl)Cl.CN(C)C1C=CN=CC=1.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]([CH3:55])=[CH:43][CH:44]2[CH2:49][CH2:48][CH:47]([O:50][S:76]([C:71]3[CH:72]=[CH:73][CH:74]=[CH:75][C:70]=3[N+:67]([O-:69])=[O:68])(=[O:77])=[O:78])[CH:46]([O:51][CH2:52][CH2:53][CH3:54])[CH2:45]2)[CH:7]([CH3:56])[CH2:6][CH2:5][C:4]1=[O:57])[CH3:2]Komponenten
Edukt 3
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 3
Versuchsvorschrift
To a solution of 17-ethyl-1-hydroxy-12-[2'-(4"-hydroxy-3"-propyloxycyclohexyl)-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 (130 mg) in dry methylene chloride (1.75 ml) was added an excess of diisopropylethyl amine (67 μl) and o-nitrophenylsulfonyl chloride (72 mg) followed by addition of 4-dimethylaminopyridine (47 mg). The mixture was stirred at room temperature for 16 hours at which time it was diluted with ethyl acetate, extracted from half-saturated sodium bicarbonate solution and washed with brine. The combined organics were dried over magnesium sulfate and the concentrate purified by flash chromatography on silica gel (ethyl acetate: hexane (1:2)+1% methanol to give the title compound (111 mg).
Aufarbeitung
- extractionextracted from half-saturated sodium bicarbonate solution
- washwashed with brine
- dry with materialThe combined organics were dried over magnesium sulfate
- customthe concentrate purified by flash chromatography on silica gel (ethyl acetate: hexane (1:2)+1% methanol
Quellen und Nachweise
- ORD-Eintrag
- ord-e2ed902905ad4776b0a8014f1dc57eb2
- Quelldatensatz
- uspto-grants-1993_05
- Patentnummer
- US05208228
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