Mw	molecular weight
NP	natural product
SAR	structure activity relationship
DMAP	4-dimethylaminopyridine
NO	nitric oxide
rt	room temperature
THF	tetrahydrofuran
TEA	triethylamine
Ac	acetyl group
MTT	3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide
MIC	minimal inhibitory concentration
DR5	death receptor 5
IED	inverse electron demand
HDA	hetero-Diels–Alder
SI	selectivity index