Corydalis decumbens (Thunb.) Pers.

Decumbensine ((+)-Egenine) is a phthalideisoquinoline hemiacetal alkaloid present in Corydalis decumbens. Decumbensine significantly inhibits spontaneous calcium oscillations in primary cultured neocortical neurons, reducing oscillation frequency and amplitude. Decumbensine can be used in studies related to central nervous system diseases, epilepsy and pain.

Decumbenine B is a phenylisoquinoline-type alkaloid. Decumbenine B can be found in the roots of Corydalis decumbens.

Decumbenine (2-1) is an isoquinoline alkaloid found in Corydalis decumbens (Thunb.) Pers.

(+)-Adlumidine (Adlumidine) is an isoquinoline alkaloid. (+)-Adlumidine efficiently binds to two key targets of SARS-CoV-2, Mpro and RBD, with IC₅₀ values of 953.86 nM and 9.48 μM, respectively. (+)-Adlumidine exerts significant positive inotropic effects and certain positive chronotropic effects on cultured mouse embryonic cardiomyocytes. (+)-Adlumidine can be used for research on cardiovascular-related diseases and SARS-CoV-2 infection.