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An unexpected synthetic product coming from Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP) in Berlin, from the lab of Dr. Marc Nazaré. The dataset was provided to ACD/Labs as part of our Structure Elucidation Suite Challenge. The product was isolated after a reaction and it was found by HR-MS to have a molecular formula of C14H13N3O.

Zhou et al isolated three novel diterpenoids with an unprecedented 2,3:5,6-di-seco-grayanane carbon skeleton. Rhodomollacetal A was obtained as colorless prisms, molecular formula C21H32O7.

E. Ioannou et al have developed an integrated metabolomic platform for the identification of known compounds and detection of new metabolites at the early stages of phytochemical analysis. Vagiallene was isolated through a series of chromatographic separations, molecular formula C15H15Br2O5.

Symmetric Helical Synthesis Product This month’s problem is again a bit different from the others. It comes from the Department of Chemistry, University of Bath, UK. John Lowe had been trying to challenge Structure Elucidator and asked his colleagues at the Department for interesting problems. David Carbery gave him two synthetic samples, A and B,...

Deformulation, breaking down drug products into components is vital but traditionally slow and complex. Modern workflows integrate LC/MS, GC/MS, automation, and centralized databases to streamline analysis, boost reproducibility, and accelerate decisions. ACD/Labs software helps scientists cut effort, improve accuracy, and stay competitive.

An unprecedented structure of Herqupenoid A containing a multicyclic, caged 2,7-dioxatetracyclo[5.4.0.04,11.05,9]hendecane fragment with an unprecedented 5/5/6/5-fused ring skeleton (molecular formula C24H34O6) was elucidated with the help of Structure Elucidator, fully automatically in 7 seconds.

In this compound the riboflavin skeleton was supplemented by the formation of two additional fused heterocycles through a novel C−C bond and an oxygen bridge on the riboflavin backbone. The structure of mantidisflavin A (molecular formula C17H19N4O6) was elucidated using 1D and 2D NMR spectra in combination with HR-ESI-MS and IR.

Oberlies and co-workers isolated a new natural product, Wheldone (molecular formula C25H34O6). Its structure was elucidated by one- and two-dimensional NMR and mass spectrometry. We used data from this article to challenge Structure Elucidator Suite.