Reaction #1702133

Reaction equation

HCl

3-{2-[(2-{[3-(2-bromoethyl)phenyl]amino}-5-chloropyrimidin-4-yl)amino]ethyl}phenol

sodium hydroxide

→

desired product

Yield 21.0%

6-Chloro-16-oxa-2,4,8,25-tetraazatetracyclo[17.3.1.1(3,7).1(11,15)]pentacosa-1(23),3(25),4,6,11(24),12,14,19,21-nonaene

Yield 21.0%

Solvents

tetrahydrofuran

water

Conditions

Workup

1. 1
   ExtractionThe aqueous layer was extracted with EtOAc twice
2. 2
   DryingThe combined organic layers were dried over Na2SO4
3. 3
   Filtrationfiltered
4. 4
   Concentrationconcentrated
5. 5
   Otherto give the crude, which
6. 6
   Otherwas purified by silica gel column chromatography

Procedure

To a solution of 3-{2-[(2-{[3-(2-bromoethyl)phenyl]amino}-5-chloropyrimidin-4-yl)amino]ethyl}phenol (50.0 mg, 0.112 mmol) in tetrahydrofuran (1.09 mL) was added a solution of sodium hydroxide in water (0.893 mL, 0.50 M). The resultant solution was stirred at rt for 2 days until the reaction was complete. The reaction was neutralized with HCl (3 M, aqueous solution) to pH 7. The aqueous layer was extracted with EtOAc twice. The combined organic layers were dried over Na2SO4, filtered, and concentrated to give the crude, which was purified by silica gel column chromatography to give the desired product as a white powder (8.5 mg, 21%). LCMS for C20H20ClN4O (M+H)+: m/z=367.0. 1H NMR (400 MHz, CD3OD): δ 7.81 (s, 1H), 7.70 (s, 1H), 7.57 (m, 1H), 7.22 (t, J=8.0 Hz, 1H), 7.08 (m, 2H), 6.69 (s, 1H), 6.67 (m, 2H), 5.73 (dd, J=6.8, 0.8 Hz, 2H), 5.14 (dd, J=7.2, 1.2 Hz, 2H), 3.72 (t, J=7.6 Hz, 2H), 2.86 (t, J=7.6 Hz, 2H).

Source