| CPC C07D 491/16 (2013.01) [A61K 45/06 (2013.01)] | 21 Claims |
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1. A compound having the structure of Formula I, Formula II, or a stereoisomer thereof, in isolated form
![]() wherein:
R1 is
![]() in Formula I;
R1 is C(O)—R2 in Formula II,
wherein R2 is a substituted or unsubstituted alkyl or alkenyl group;
provided that R1 is not 1-oxo-oct-2,4,6-trienyl.
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