Hygric acid (N-Methyl-L-proline) is a proline analogue found in the citrus juices and the juice of bergamot.

Piperafizine A is isolated from Streptoverticillium aspergilloides and potentiates vincristine antitumor potency.

Butin is a major biologically active flavonoid isolated from the heartwood of Dalbergia odorifera with oral activity, with strong antioxidant, antiplatelet and anti-inflammatory activities. Butin significantly alleviates myocardial infarction and improves heart function, together with prevents diabetes-induced cardiac oxidative damage in rat.