The present invention relates to a process for synthesis of ether derivative of artemisinin by reducing artemisinin to dihydroartemisinin using a mixture of sodium borohydride and a dihydroxy compound, followed by etherification in presence of an acid catalyst and an alcohol.

The present disclosure relates to a process for preparation of artesunate, 10a-hemisuccinate of dihydroartemisinin, from artemisinin involving reduction of artemisinin to dihydro intermediate followed by its esterification.

The present disclosure provides an extractor for extracting active principle of interest from solid materials using an extracting fluid. The extractor comprises of an extracting column having at least one perforated plate with projections that is useful for compacting, crushing the solid material, leveling of solid ...

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