Tomentediline A: A isoquinoline alkaloids with undescribed carbon skeleton from Corydalis tomentella.

Two undescribed isoquinolines (1-2), including one undescribed carbon skeleton isoquinoline together with six known ones (4-9) as well as an undescribed amide (3) and three known ones (10-12) were isolated from C. tomentella. Their planar structures and absolute configurations were elucidated by extensive analyses of UV, NMR, HRESIMS, DP4+ statistical analysis and ECD calculations, respectively.

Undescribed compounds from Clinopodium chinense (Benth.) O. Kuntze and their coagulation activity studies.

Four rare compounds (1-4), including one 1,4-epoxy-benzoxepane derivative and one ringed prenylated naphthoquinoid skeleton, as well as one isopimarane-type diterpenoid and one megastigmane-type glycoside, along with three known megastigmane-type glycosides (5-7) were isolated from the ethanol extracts of C. chinense. Their structures were determined on the basis of 1D, 2D NMR, HR-ESI-MS and DP4+ analysis.