2-Desoxy-4-epi-puchellin (PCL) is a sesquiterpene-lactone, which naturally occurs in many traditional Chinese medicinal plants, and has antitumor and anti-inflammatory activities. In this work, a series of 13-amino derivatives of PCL were synthesized through Michael addition reaction. Inhibition of
Fourteen compounds including vanicoside B (1), vanicoside F (2), vanicoside E (3) and 5,6-dehydrokawain (4), aniba-dimer-A (5), 6,6'-((1α,2α,3β,4β)-2,4-diphenylcyclobutane-1,3-diyl)bis(4-methoxy-2H-pyran-2-one) (6), (+)-ketopinoresinol (7), isorhamnetin (8), 3,7-dihydroxy-5,6-dimethoxy-flavone (9),
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