Patent ID: 11939332
Assignee: INTERNATIONAL PAPER COMPANY
Field: Medical technology (Instruments)
Classification: CPC A  C  B | IPC B  C

Claim 1:
2. The method of claim 1, wherein (b) comprises a first step of reacting the 3-benzyl-5-bromopyrazin-2-amine (2) with 4-methoxyphenyl boronic acid (4) in the presence of a palladium catalyst to provide 3-benzyl-5-(4-methoxyphenyl)pyrazin-2-amine (5), and a second step of deprotecting the 3-benzyl-5-(4-methoxyphenyl)pyrazin-2-amine (5) to provide the 4-(5-amino-6-benzylpyrazin-2-yl)phenol (7).