Electric Literature of 165807-05-6 ,Some common heterocyclic compound, 165807-05-6, molecular formula is C7H11N3O2, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc., below Introduce a new synthetic route.
Intermediate P: 1-(4-((2-Aminopyrimidin-4-yl)methoxy)naphthalen-1-yl)-3-(3-tert-butyl-1-p-tolyl-1H-pyrazol-5-yl)ureaHydrochloric acid (2M, 207 mL, 414 mmol) was added to 4-(dimethoxymethyl)pyrimidin-2-amine (68) (WO 2007/096764) (14.0 g, 83 mmol) and the mixture heated at 48¡ã C. for 16 hr.The mixture was cooled to RT and was neutralized with solid Na2CO3 which produced a precipitate at pH 7.The suspension was diluted with EtOAc (300 mL) and the solid removed by filtration.The organic layer was separated and the aqueous layer was extracted with 1percent MeOH in THF (4*300 mL).The organics were combined, dried and then evaporated in vacuo.The residue (ca. 4.0 g) was suspended in a mixture of MeOH (100 mL), THF (100 mL) and water (100 mL) and treated with NaBH4 (1.57 g, 41.4 mmol).After stirring for 1 hr a solution of NaOH (1M, 20 mL) was added and the mixture was allowed to stand at RT for 48 hr.The solvents were evaporated to give a yellow solid which was partitioned between water (50 mL) and EtOAc (100 mL).The solid which formed at the interface was removed by filtration and the aq layer was extracted with THF (3*300 mL) then dried and evaporated to give a yellow solid.The material was suspended in THF (100 mL) and MeOH (50 mL) and absorbed onto silica gel (20 g) and subjected to column chromatography (80 g, 15percent MeOH in DCM isocratic elution) to give (2-aminopyrimidin-4-yl)methanol (69) as an off-white solid (720 mg, 7percent): m/z 126 (M+H)+ (ES+).
In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles. 165807-05-6, 4-Dimethoxymethylpyrimidin-2-ylamine, other downstream synthetic routes, hurry up and to see.
Reference:
Patent; Charron, Catherine Elisabeth; Fenton, Robert; Crowe, Scott; Ito, Kazuhiro; Strong, Peter; Rapeport, William Garth; Ray, Keith; US2012/244120; (2012); A1;,
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia