Reaktion #162190

Reaktionsgleichung

HCl

ethyl 2-((1S,3S)-3-(5-fluoro-2-(5-fluoro-1-tosyl-1H-pyrrolo[2,3-b]pyridin-3-yl)pyrimidin-4-ylamino)-1-hydroxycyclohexyl)propanoate

Ethyl 2-((1S,3S)-3-(5-fluoro-2-(5-fluoro-1-tosyl-1H-pyrrolo[2,3-b]pyridin-3-yl)pyrimidin-4-ylamino)-1-hydroxycyclohexyl)propanoate

LiOH

→

61d

2-((1S,3S)-3-(5-fluoro-2-(5-fluoro-1H-pyrrolo[2,3-b]pyridin-3-yl)pyrimidin-4-ylamino)-1-hydroxycyclohexyl)propanoic acid

Lösungsmittel

THF

Reaktionsbedingungen

Aufarbeitung

1. 1
   Einengenconcentrated to dryness
2. 2
   workup.ADDITIONdiluted in toluene
3. 3
   Einengenconcentrated again (2×)

Vorschrift

To a solution of ethyl 2-((1S,3S)-3-(5-fluoro-2-(5-fluoro-1-tosyl-1H-pyrrolo[2,3-b]pyridin-3-yl)pyrimidin-4-ylamino)-1-hydroxycyclohexyl)propanoate (61c) (0.20 g, 0.33 mmol) in THF (3 mL) was added LiOH (3 mL of 1 M aqueous solution, 3.0 mmol). The reaction was allowed to stir over 2 days at room temperature then neutralized with HCl (1.5 mL of 2M, 3.0 mmol) and concentrated to dryness, diluted in toluene and concentrated again (2×) to give 61d which was used without further purification. LCMS+: 418.32 at 2.62 min (10-90% MeOH, 3/5 grad/run, Formic Acid).

Quelle