Scheme 18.
Synthesis of 1α,25-(OH)2-19-nor-vitamin D3 analogs with A-ring, CD-ring, and side chain modifications.
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.