Abstract
| - Two new diterpenoids, pierisformoside A (1) and pierisformosin D (2), and two known diterpenoids,asebotoxins VIII (3) and V (4), were isolated from leaves of Pieris formosa. Their structures were elucidatedon the basis of spectral analysis, including 1H−H COSY, 13C−1H COSY, HMBC, and NOESY experiments.
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