Absolute Configuration and Body Part Distribution of the Alkaloid 6-epi-Monanchorin from the Marine Polychaete Chaetopterus variopedatus
As a result of the first study on secondary metabolites from the cosmopolitan bioluminescent marine tube polychaete Chaetopterus variopedatus, a new bicyclic guanidine alkaloid, 6-epi-monanchorin (1), along with the previously known monanchorin (2) were isolated. The structure of 1 was elucidated by...
The property of biological degradation is used as the primary evaluation index in this article. By designing the radio of the monomer, the experiment tests the CODCr/BOD5 value of seven kinds of sizes, which are of different monomer ratios. The calibration experiment is the COD value of potassium hydrogen phthalate (KHP) standard solution and the BOD value of Glucose and sodium glutamate salt standard solution. By using the optimum ratio of monomer, we synthesized the new acrylic sizing agent, which has a good biodegradation performance and can be biochemical.