Reaktion #421080

Reaktionsgleichung

(S)-3-((S)-1-(4-((1-aminocyclohexyl)ethynyl)phenyl)ethyl)-6-(2-hydroxy-2-methylpropyl)-6-phenyl-1,3-oxazinan-2-one

i-Pr2NEt

Acetic anhydride

→

title compound

Ausbeute 47.2%

N-(1-((4-((S)-1-((S)-6-(2-hydroxy-2-methylpropyl)-2-oxo-6-phenyl-1,3-oxazinan-3-yl)ethyl)phenyl)ethynyl)cyclohexyl)acetamide

Ausbeute 47.2%

Lösungsmittel

CH2Cl2

Reaktionsbedingungen

Aufarbeitung

1. 1
   SonstigeA vial equipped with a flea
2. 2
   workup.STIRRINGThe mixture was stirred overnight at rt
3. 3
   Sonstigeevaporated to dryness
4. 4
   SonstigeThe residue was purified by prep HPLC

Vorschrift

A vial equipped with a flea stir bar was charged with (S)-3-((S)-1-(4-((1-aminocyclohexyl)ethynyl)phenyl)ethyl)-6-(2-hydroxy-2-methylpropyl)-6-phenyl-1,3-oxazinan-2-one (12 mg, 0.025 mmol), i-Pr2NEt (0.015 mL, 0.08 mmol) and CH2Cl2 (2 mL). Acetic anhydride (0.005 mL, 0.043 mmol) was added. The mixture was stirred overnight at rt and evaporated to dryness. The residue was purified by prep HPLC to afford the title compound (6.1 mg, 47%). LC-MS Method 1 tR=1.65 min, m/z=517, 459; 1H NMR (CDCl3) 1.12 (s, 3H), 1.18 (s, 3H), 1.30 (m, 1H), 1.51 (d, 3H), 1.65 (m, 6H), 1.87 (m, 2H), 1.99 (s, 3H), 2.14 (m, 3H), 2.21 (s, 2H), 2.35 (m, 1H), 2.78 (m, 1H), 5.65 (q, 1H), 6.88 (d, 2H), 7.18 (d, 2H), 7.30-7.40 (5H)

Quelle