Figure 12.
Preparation of diastereomeric amides 16a and 16b (a), separation by HPLC on silica gel (b), and preparation of methyl ester (S)-(−)-17 (c). HPLC, redrawn from [24].
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.