基本解释n.壬酮同根派生 英汉例句Thesynthesisof (4S ,6S ,7S) 7 Hydroxy 4,6 dimethyl 3 nonanone ,thesex pheromoneofLasiodermaserricorneFabricius,wasachievedbystartingfrom propargylalcohol and (S) proline . 以丙炔醇及(S)脯氨酸为原料;合成了烟草甲性信息素(4S;6S;7S)7羟基4;6二甲基3壬酮.