ChemInform Abstract: Synthesis and Insecticidal Activities of Novel Spin-Labeled Derivatives of Camptothecin.
β Scribed by Ying-Qian Liu; et al. et al.
- Publisher
- John Wiley and Sons
- Year
- 2012
- Weight
- 12 KB
- Volume
- 43
- Category
- Article
- ISSN
- 0931-7597
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β¦ Synopsis
Abstract
Intermediate (Ia) and eight spinβlabeled camptothecin derivatives like (Ib) are synthesized from camptothecin and evaluated for their insecticidal activity against the fifthβinstar larva B.longissima in vivo.
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## 3 Results The values (24 h) of dimethyl-and di-allyl-LD 50 thiosuΓΌnate were comparable, varying from 0.02 mg litre~1 against P. interpunctella to 0.25 mg litre~1 against C. maculatus, although those for thiosulΓΌnates were generally lower than those for disulΓΌdes. In comparison, 24-h values for