Synthetic Modification of Cotylenol. Synthesis of 3<i>α</i>-Cotylenyl Methyl Dithiocarbonates with Four Diastereomeric Glycol Moieties and Their Plant Growth Regulating Activity
作者:Nobuo Kato、Hiroaki Okamoto、Hitoshi Takeshita
DOI:10.1246/bcsj.68.2679
日期:1995.9
To confirm the role of an electronegative substituent on the C-3 position of the cotylenol framework in exhibiting the biological activity, four diastereomers at the 8,9-glycol moieties of 3α-sulfur analogs, 3α-cotylenyl methyl dithiocarbonates, were synthesized. The 8β,9α-dihydroxy compound, which had the same stereochemistry regarding the glycol moiety with natural products, revealed similar biological activity in stimulating the germination of lettuce seeds.
为了确认在cotylenol结构上C-3位有电负性取代基所展示的生物活性,合成了3α-硫类似物的8,9-甘油部分的四个对映异构体,即3α-cotylenyl甲基二硫代碳酸盐。其中,8β,9α-二羟基化合物因其与天然产物在甘油部分的相同立体结构,在促进生菜种子萌发方面展现出类似的生物活性。