Polyurea Bearing L-Lysinyl Residue as a Chiral Building Block and Its Application to Optical Resolution
Bibliographic record
Abstract
Chial polyureas were prepared from L-Lys-OEt and 2,4-TDI. The optimum polyaddition conditions were determined as follows: [L-Lys-OEt] = 2.08 x 10-1 mol dm-3 and [2,4-TDI] = 2.50 x 10-1 mol dm-3 ([L-Lys-OEt]/[2,4-TDI] = 0.83). The polyuera thus obtained gave a durable self-standing membrane and it was directly converted into molecular recognition membranes by applying an alternative molecular imprinting. The D-isomer molecularly imprinted membrane adsorbed the D-isomer in preference to the L-isomer and vice versa. In the present study, two types of print molecule, such as Z-D-Glu and Z-L-Glu, worked as print molecules though the polyurea consisted of L-lysinyl residue. Those two types of molecularly imprinted membrane showed chiral separation ability. The membrane, which was molecularly imprinted by the D-isomer and preferentially incorporated the D-isomer into the membrane, selectively transported the D-isomer and vice versa.
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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 | 0.005 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 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".