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.
Structures of asperphenins and synthetic derivatives: Asperphenin A (1); asperphenin B (2); cycloasperphenin A (3); cycloasperphenin B (4); 7-hydroxyasperphenin A (5); 7-epi-hydroxyasperphenin A (6); 7-hydroxyasperphenin B (7); 7-epi-hydroxyasperphenin B (8); 7, 15(S)-dihydroxyasperphenin A (9); 7,15(S)-dihydroxyasperphenin B (10); 7,15(R)-dihydroxyasperphenin B (11).
