Semi-Synthesis of a Biologically Inspired Library of Natural Product Mimics, from the Lipophilic Marine Natural Product β-Gorgonene
Bibliographic record
Abstract
Inspired by ilimaquinone and other biologically active sesquiterpenes, we have transformed a highly lipophilic, non-drug-like, marine natural product (gorgonene), available as a by-product from the purification of pseudopterosins, into a library of more drug-like derivatives. Our strategy utilizes semi-synthesis to attach suitable structures such as substituted aromatics and heteroaromatics to the gorgonene scaffold to increase its drug-likeness and mimic natural product structures in biological systems. Several synthetic techniques are being explored to incorporate these interesting substructures in a minimum number of steps. The first strategy focuses on skeletal rearrangements and 2+3 cycloaddition. The second involves ozonolysis of gorgonene followed by introduction of structures using carbonyl chemistry. Biotransformation is being used as a third strategy to selectively oxidize synthetically inaccessible carbons on the saturated backbone to facilitate further transformations. The PTP1B (potential therapeutic target for treatment of type 2 diabetes) and cytotoxic activity of the synthesized compounds will be discussed as well as some unexpected and interesting reactivity we have observed in the 1,5-diene system present in our starting scaffold, β-gorgonene.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.002 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.003 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".