Salvianolic acids T and U: a pair of atropisomeric trimeric caffeic acids derivatives from root of Salvia miltiorrhiza.

Two new trimeric caffeic acids, named salvianolic acids T and U (1 and 2), were isolated from the underground part of Salvia miltiorrhiza. Their structures, consisting of three caffeic acid units, were determined based on extensive 1D- and 2D-spectroscopic analyses and electronic circular dichroism (ECD) calculations.

Terpenoids and steroids from Lappula anocarpa.

A novel nor-terpenoid, named lappulanocarpine A and a known terpenoid derivative, nine known steroids and three known long chine esters were isolated from the alcoholic extract of the whole plant of Lappula anocarpa. The novel structure was characterized by means of spectral methods including 1D-, 2D-NMR and HR-ESIMS and the known compounds were identified on the basis of comparing their NMR data with those of the corresponding compounds in the literature.