Efficient, column-chromatography-free synthesis of Dipterocarpol succinate oxime ester salts

Natural-product-based drugs commonly were converted to organic or inorganic salts due to better stability, solubility or membrane-permeability of new salts compared to the drug itself. In this report, succinate oxime ester of dipterocarpol was synthesized successfully in a simple column chromatography-free isolation process.