Reacción #88769

Ecuación de reacción

3-(5-(4-chlorobenzyl)-6-isopropoxy-1-methyl-2,4-dioxo-1,2-dihydropyrido[2,3-d]pyrimidin-3(4H)-yl)propyl formate

LiOH.H2O

→

5-(4-chlorobenzyl)-3-(3-hydroxypropyl)-6-isopropoxy-1-methylpyrido[2,3-d]pyrimidine-2,4(1H,3H)-dione

Rendimiento 37.0%

Disolventes

THF

water

water

Condiciones de reacción

Tratamiento posterior

1. 1
   Extracciónextracted with EA (3×15 mL)
2. 2
   SecadoThe combined organic layers were dried over Na2SO4
3. 3
   Concentraciónconcentrated to a residue which
4. 4
   Otrowas purified by Prep HPLC

Procedimiento

To a solution of 3-(5-(4-chlorobenzyl)-6-isopropoxy-1-methyl-2,4-dioxo-1,2-dihydropyrido[2,3-d]pyrimidin-3(4H)-yl)propyl formate (55 mg, 0.13 mmol) in THF (6 mL) and water (6 mL) was added LiOH.H2O (10.9 mg, 0.26 mmol). The reaction was stirred at RT for 15 min then diluted with water (20 mL) and extracted with EA (3×15 mL). The combined organic layers were dried over Na2SO4 and concentrated to a residue which was purified by Prep HPLC to give 5-(4-chlorobenzyl)-3-(3-hydroxypropyl)-6-isopropoxy-1-methylpyrido[2,3-d]pyrimidine-2,4(1H,3H)-dione (20 mg, 37% yield) as a white solid. 1H NMR (CDCl3) δ: 8.33 (s, 1H), 7.18 (s, 4H), 4.73 (s, 2H),), 4.68-4.68 (m, 1H), 4.28-4.15 (m, 2H), 3.69 (s, 3H), 3.52 (dd, J=11.8, 6.2 Hz, 2H), 3.16 (t, J=7.0 Hz, 1H), 1.97-1.82 (m, 2H), 1.34 (d, J=6.0 Hz, 6H). LCMS: MH+ 418 and TR=2.915 min.

Fuente