Development of New Fungicides against <i>Magnaporthe grisea</i>: Synthesis and Biological Activity of Pyrazolo[3,4-<i>d</i>][1,3]thiazine, Pyrazolo[1,5-<i>c</i>][1,3,5]thiadiazine, and Pyrazolo[3,4-<i>d</i>]pyrimidine Derivatives
作者:Chiara B. Vicentini、Giuseppe Forlani、Maurizio Manfrini、Carlo Romagnoli、Donatella Mares
DOI:10.1021/jf0202436
日期:2002.8.1
Some pyrazolo[3,4-d]pyrimidin-4(5H)-thione, pyrazolo[3,4-d][1,3]thiazin-4-one/thione, and pyrazolo[1,5-c][1,3,5]thiadiazine-4-one/thione derivatives were synthesized and screened for antifungal activity against the causal agent of rice blast disease, Magnaporthe grisea. In all cases a remarkable inhibition of fungal growth was found in the range from 10 to 200 microg x mL(-1). Several compounds were
某些吡唑并[3,4-d]嘧啶-4(5H)-硫酮,吡唑并[3,4-d] [1,3]噻嗪-4-酮/硫酮和吡唑并[1,5-c] [1合成了(3,5]噻二嗪-4-酮/硫酮衍生物,并针对稻瘟病稻瘟病的病原菌筛选了抗真菌活性。在所有情况下,真菌生长的显着抑制均在10到200微克x mL(-1)范围内。几种化合物能够以10微克x mL(-1)的速率控制菌丝体的生长,在该浓度下参考化合物三环唑完全无效。至少在最有活性的物质的情况下,在相同剂量下,水稻的幼苗或培养的细胞的生长基本上不受影响。结果允许定义结构要求以维持或增强霉菌毒素活性。