Pederin (1, Figure1) has a long and rich history among bioactive natural products.[1] Present in the haemolymph of rove beetles of the genus Paederus,[2] this compound was first obtained in crystalline form in 1919 by Netolitzky and was shown to be a potent vesicant.[3] Pavan and Bo led a massive isolation effort, using 25million field-collected Paederus fuscipes beetles, to secure a sizable quantity of pure pederin,[4] to allow its chemical ...