<unk>  is a semisynthetic alkaloid from the hydrolysis of the alkaloid hydrastine, which was found naturally in small quantities in Hydrastis canadensis L. (Ranunculaceae).<unk>  was produced by oxidative splitting of hydrastine hydrochloride with nitric acid in good yield. The drug was patented by Bayer as a haemostatic drug during the 1910s. The first known synthesis of methylenedioxymethamphetamine (MDMA) was actually an intermediate in the synthesis of the methylated analogue of<unk> , methylhydrastinine. It was only reviewed for its activity many years after its original synthesis.<unk>  has also been found as an impurity or side product in MDMA synthesis performed by low pressure amination of 3,4-methylenedioxyphenylpropan-2-one with methylamine.
Hydrastinine
Nandrolone furylpropionate
Ingenol mebutate
Drostanolone propionate
Nandrolone phenylpropionate
Nandrolone cyclohexylpropionate
Epristeride
Tolterodine