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.
The MS/MS spectrum of the peak at 4.58 min (coded blue in Fig. 7). These data illustrate the common fragmentation patterns observed with acetogenins. In particular, note the fragments adjacent to hydroxy moieties, thereby facilitating the elucidation of the positioning of the THF ring and each hydroxy group. Based on these data and the associated literature, this compound is tentatively identified as annonacin.
