Department of Medicinal Chemistry, Merck Research Laboratories, PO Box 4, West Point, PA 19486, USA. keith_moore2@merck.com
Abstract:
This letter describes replacements for the P3 amide moiety present in previously reported tertiary carbinamine macrolactones. Although P-gp efflux issues associated with these amide-macrolactones were solved and full brain penetration was measured in one case, potency was compromised in the process.