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• 87087-67-0 16α-(-)-Kauran-17,19-diol-di-p-toluolsulfonat 

Relevant academic research and scientific papers

Chemische und Chemotaxonomische Untersuchungen von Filices. XL. Chemische Untersuchungen der Inhaltsstoffe von Microlepia marginata (Panzer) C. CHR.

From the fronds of Microlepia marginata (Panzer) C.Chr. five new ent-kaurane type diterpene glycosides, microlepin(I), 17-O-acetylmicrolepin(VIII), 6'-O-acetylmicrolepin(IX), 4-epi-microlepin(X) and 6'-O-α-L-rhamnopyranosyl-4-epi-microlepin(XVIII) were isolated and their structures were elucidated by spectroscopic methods and some chemical reactions.Microlepin and 4-epi-microlepin possesses the structures 16α,17,19-trihydroxy-ent-kaurane 19-O-β-(4'-O-methyl)-D-glucopyranoside and 16α,17,18-trihydroxy-ent-kaurane 18-O-β-(4'-O-methyl)-D-glucopyranoside. Keywords---Microlepia marginata; fern; chemotaxonomy; ent-kaurane glycoside; spectroscopic method; chemical reaction