Contribution from the Departments of Chemistry, Princeton University, Princeton New Jersey 08544, Columbia University, New York, New York 10027, and University of Pittsburgh, Pittsburgh, Pennsylvania ...

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Vibrational circular dichroism (VCD) has rapidly emerged as a critical chiroptical technique for elucidating the absolute configuration of chiral molecules. By measuring the differential absorption of ...

Structural elucidation of natural products is always one of the most important tasks for natural product researchers in related fields. Particularly, the absolute configuration (AC), being a great ...

The absolute-configuration determination of natural products and synthetic compounds with stereogenic centers is very important because stereoisomers dramatically and differentially affect many ...

sDP4+ values (all data in the scaled form) obtained by correlating the calculated 1 H and 13 C NMR chemical shifts of the four diastereoisomers with the experimental NMR data of the isolated natural ...

Approximately 0.2 to 0.5 mg of ant venom containing a mixture of trifluoroacetylated alkaloids, ethyl acetate (1 mL), and catalytic amount of Pd/C (10%) was added to a round-bottom flask (5 mL). The ...