Senecio latifolius DC.

Sceleratine N-oxide is a pyrrolizidine alkaloid N-oxide isolated from Senecio latifolius DC. As a secondary metabolite of toxic plants, Sceleratine N-oxide serves as one of the target analytes for LC-MS/MS detection of PA/PANO contamination in milk.

Merepoxine is a jacobin-like pyrrolizidine alkaloid and an epoxide. Merepoxine is formed by the transformation of melensine under alkaline conditions, involving an SN2 reaction accompanied by elimination of hydrogen chloride (i.e., a chlorohydrin-like reaction) to form this epoxide.

Merenskine N-oxide is a jacobine-like chlorinated 1,2-unsaturated pyrrolizidine alkaloid N-oxide with a hydroxyl group at the α-position. Merenskine N-oxide has a halohydrin side-chain configuration and serves as a substrate for epoxidation reactions. The transfer rate of Merenskine N-oxide into black tea leachate is pH-dependent, and its transfer rate decreases significantly under alkaline conditions.

Merenskine is a chlorinated 1,2-unsaturated senecionine-type pyrrolizidine alkaloid and serves as a substrate for epoxidation reactions. Merenskine forms merepoxine N-oxide upon evaporation in ammoniated solvents, while it generates merepoxine under alkaline sample preparation conditions. Merenskine exhibits a pH-dependent transfer rate in black tea infusion, and the transfer rate decreases sharply under alkaline conditions.

Dicliripariside A is a natural terpenoid.

Peiioside A is a phenylethanoid glycoside compound that can be isolated from the leaves and stems of Callicarpa longissima. Callicarpa longissima has traditional medicinal uses for treating colds, coughs, arthritis, and bleeding, and can be used in the research of anti-inflammatory and antibacterial agents, as well as in neuroprotection-related fields.