ChemicalBook CAS DataBase List Olmutinib

Olmutinib synthesis

4synthesis methods

Product Name:Olmutinib
CAS Number:1353550-13-6
Molecular formula:C26H26N6O2S
Molecular Weight:486.59

Synthetically, olmutinib can be accessed in two steps beginning with 2,4-dichloro-thieno[3,2-d]pyrimidine (147), which is commercially available and can be prepared in two steps from urea and 3-aminothiophene 2- carboxylate. Nucleophilic addition of N-(3-hydroxyphenyl)-2- propenamide (148) to 147 proceeded with complete regioselectivity via treatment with K2CO3 in warm DMSO, smoothly providing the desired diaryl ether 149 in 87% yield after crystallization from isopropanol and water. From 149, substitution with commercially available piperazinyl aniline 150 under acidic heating conditions (DMA, IPA, TFA, 90 °C) provided olmutinib in 82% yield. After recrystallization, olmutinib (XVI) was obtained in 60% overall yield and 99.1% purity.