Hydrochloric Acid → methyl (1aRS,7bSR)-5-{N-[4-fluoro-2-((Z)-3-hydroxy-2-methylprop-1-enyl)benzenesulfonyl]-N-methoxycarbonylamino}-1,1a,2,7b-tetrahydrocyclopropa-[c]chromene-4-carboxylate

HRID 928060Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 928060
Cl.[Si]([O:9][CH2:10]/[C:11](/[CH3:43])=[CH:12]\[C:13]1[CH:18]=[C:17]([F:19])[CH:16]=[CH:15][C:14]=1[S:20]([N:23]([C:28]1[C:37]([C:38]([O:40][CH3:41])=[O:39])=[C:36]2[C:31]([CH:32]3[CH2:42][CH:33]3[CH2:34][O:35]2)=[CH:30][CH:29]=1)[C:24]([O:26][CH3:27])=[O:25])(=[O:22])=[O:21])(C(C)(C)C)(C)C>CO>[F:19][C:17]1[CH:16]=[CH:15][C:14]([S:20]([N:23]([C:28]2[C:37]([C:38]([O:40][CH3:41])=[O:39])=[C:36]3[C:31]([CH:32]4[CH2:42][CH:33]4[CH2:34][O:35]3)=[CH:30][CH:29]=2)[C:24]([O:26][CH3:27])=[O:25])(=[O:22])=[O:21])=[C:13](/[CH:12]=[C:11](/[CH3:43])\[CH2:10][OH:9])[CH:18]=1

Komponenten

4

Edukt 2

HCID 313Hydrochloric AcidHCID 86713360methyl (1aRS,7bSR)-5-(N-{2-[(Z)-3-(tert-butyldimethylsilanyloxy)-2-methylprop-1-enyl]-4-fluorobenzenesulfonyl]-N-methoxycarbonyl-amino}-1,1a,2,7b-tetrahydrocyclopropa[c]chromene-4-carboxylate2×

Produkt 1

HCID 71007016methyl (1aRS,7bSR)-5-{N-[4-fluoro-2-((Z)-3-hydroxy-2-methylprop-1-enyl)benzenesulfonyl]-N-methoxycarbonylamino}-1,1a,2,7b-tetrahydrocyclopropa-[c]chromene-4-carboxylateAusbeute 100 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 887MethanolLösungsmittel

Versuchsvorschrift

Concentrated hydrochloric acid (1 mL) was added to a solution of methyl (1aRS,7bSR)-5-(N-{2[(Z)-3-(tert-butyldimethylsilanyloxy)-2-methylprop-1-enyl]-4-fluorobenzenesulfonyl]-N-methoxycarbonyl-amino}-1,1a,2,7b-tetrahydrocyclopropa[c]chromene-4-carboxylate (Intermediate 202, 0.385 g) in methanol (20 mL) and the mixture was left at room temperature for 45 minutes. The solution was concentrated in vacuo and the residue was purified by chromatography on silica, eluting with a mixture of ethyl acetate and cyclohexane with a gradient of 0-60% to give methyl (1aRS,7bSR)-5-{N-[4-fluoro-2-((Z)-3-hydroxy-2-methylprop-1-enyl)benzenesulfonyl]-N-methoxycarbonylamino}-1,1a,2,7b-tetrahydrocyclopropa-[c]chromene-4-carboxylate (0.314 g) as a white foam.

Aufarbeitung

  1. concentrationThe solution was concentrated in vacuo
  2. customthe residue was purified by chromatography on silica
  3. washeluting with a mixture of ethyl acetate and cyclohexane with a gradient of 0-60%

Quellen und Nachweise

ORD-Eintrag
ord-b86f538c27c645b4858d5a001299372f
Quelldatensatz
uspto-grants-2016_03
Patentnummer
US09290472B2

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