supported by the National Natural Science Foundation of China(Nos.81903489 and 81522050);the Science and Technology Program of Qinghai(No.2018-ZJ-739);the Innovation Platform for the Development and Construction of Special Project of Key Laboratory for Tibet Plateau Phytochemistry of Qinghai Province(No.2017-ZJ-Y19);the Fundamental Research Funds for the Central Universities(No.3332019080).
In a continuing search for biological natural products with structure diversity from traditional Chinese herbs,five new sesquineolignans(1−5)were isolated from an ethyl acetate extract of the twigs of Litsea cubeba.Th...