Chemical and biochemical pure substances of native origin, namely, plants, microorganisms and marine organisms, modified by semi-synthetic means for use in the screening of substances with biological and/or biochemical activities for the pharmaceutical and/or agricultural industries; chemical and biochemical pure synthetic substances, based on the model of naturally occurring pure substances for use in the screening of substances with biological and/or biochemical activities for the pharmaceu...

Chemical and biochemical pure substances of native origin, namely plants, microorganisms and marine organisms, modified by semi-synthetic means for use in the screening of substances with biological and/or biochemical activities for pharmaceutical and/or agricultural use; chemical and biochemical pure synthetic substances, based on the model of naturally occurring pure substances for use in the screening of substances with biological and/or biochemical activities for pharmaceutical and/or agr...