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ACD/Labs Blog

Mikhail Elyashberg
Kim and coworkers isolated a new neolignan, piperkadsin C, and elucidated its structure. However, the structure was revised by the same group in their next article. Structure Elucidator Suite was used to confirm the proposed structure #2, molecular formula C20H20O6.

Mikhail Elyashberg
The herb Radix Glycyrrhizae has been used as a traditional Chinese medicine for more than a thousand years. Zhao et al isolated a novel symmetrical cyclooctenone compound and elucidated its structure (molecular formula C23H34O4).

Mikhail Elyashberg
Okpekon et al isolated an unusual new indanone from the shrub Uvaria afzelii Scot Elliot, grown in the West African sub-region, named afzeliindanone. The molecular formula is C16H14O3.

Mikhail Elyashberg
A new bicoumarin derivative, bidysoxyletine, (with a molecular formula of C36H40O6) was isolated from the leaves of Dysoxylum parasiticum (Osbeck) Kosterm.

Mikhail Elyashberg
A series of new phenazines were isolated and their structures elucidated; one of these compounds was Dermacozine O, with a molecular formula of C23H15O4N3.

Mikhail Elyashberg
The analysis of C. rotalaria extracts by UHPLC-MS in conjunction with database searching led to the isolation and structure elucidation of a series of new taurine-conjugated anthraquinones, including Comatulin A, molecular formula C20H19NO10S.

Mikhail Elyashberg
A rich source of cembrane-type metabolites has been found to be Lobophytum crassum, a soft coral from the family of Alcyoniidae. Among five new cembrane derivatives that were isolated is Lobocrassin A, molecular formula C20H29ClO4.

Mikhail Elyashberg
Jin et al studied the novel analgesics used in traditional Chinese medicine and as part of this they isolated and elucidated the structure of a novel triamine monoterpene indole alkaloid, Gelstriamine A, molecular formula C22H27N3O5.

Mikhail Elyashberg
Asperspiropene A was first reported by He et al as the second derivative of a class of compounds containing a unique six-membered ring substructure. The molecular formula was determined from the HR-MS spectrum to be C17H26O8.