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.
a) The most probable rotamer along the C-3/C-4 bond highlighted by the dashed outline and alternative equilibrium of two rotamers explaining medium size coupling constants. b) Key ROESY correlations for the C-3/C-5 fragment are indicated by double-headed arrows on the partial structure. But = butyrate.
