Reaktion #7419

Reaktionsgleichung

(E)-2-(3-{[tert-butyl(diphenyl)silyl]oxy}-4-chlorophenyl)-N-{(3S)-1-[(1S)-1-methyl-2-morpholin-4-yl-2-oxoethyl]-2-oxopyrrolidin-3-yl}ethenesulfonamide

tetra n-butylammonium fluoride

→

title compound

Ausbeute 83.8%

(E)-2-(4-Chloro-3-hydroxyphenyl)-N-{(3S)-1-[(1S)-1-methyl-2-morpholin-4-yl-2-oxoethyl]-2-oxopyrrolidin-3-yl}ethenesulfonamide

Ausbeute 83.8%

Lösungsmittel

THF

Reaktionsbedingungen

Aufarbeitung

1. 1
   Temperaturto warm to room tempertaure over 3 days
2. 2
   Einengenconcentrated under reduced pressure
3. 3
   SonstigeThe residue was purified

Vorschrift

To a solution of (E)-2-(3-{[tert-butyl(diphenyl)silyl]oxy}-4-chlorophenyl)-N-{(3S)-1-[(1S)-1-methyl-2-morpholin-4-yl-2-oxoethyl]-2-oxopyrrolidin-3-yl}ethenesulfonamide (0.0078 g) in THF (0.3 ml) at −78° C. under nitrogen, tetra n-butylammonium fluoride (1M in THF, 0.014 ml) was added. The mixture was allowed to warm to room tempertaure over 3 days and then concentrated under reduced pressure. The residue was purified using mass directed preparative h.p.l.c. to give the title compound (0.0043 g) as a clear film.

Quelle