ACD/Labs Blog

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.

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

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

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.

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.

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.

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.

Iridiod Glycoside Clerodendrum (Lamiaceae) is a genus composed of 580 species. It is found in tropical and subtropical regions and mainly includes small trees, shrubs, and herbs. Many members of the genus havebeen used in traditional medicine around the world. C. myricoides is a shrub with bluish flowers that has been used extensively in traditional...

30 years after the structure of lyaline was first proposed, a new spectroscopic analysis was performed using state-of-the-art techniques to reveal errors in the original analysis, and eventually, the correct structure.