5-Chloropyridine-3-boronic acid → (2RS,4R)-6-(5-chloropyridin-3-yl)-5',5'-difluoro-2-phenyl-5',6'-dihydrospiro[chroman-4,4'-[1,3]oxazin]-2'-amine

Participants

Reaction Steps

In a manner analogous to that described in Example 19, the cross coupling reaction of (2RS,4R)-6-bromo-5′,5′-difluoro-2-phenyl-5′,6′-dihydrospiro[chroman-4,4′-[1,3]oxazin]-2′-amine (intermediate B6.3) with 5-chloropyridin-3-ylboronic acid yielded the title compound (16% yield) as a grey solid. MS (ISP): m/z=442.3 [M+H]+.

Provenance & Evidence