申请人:Iowa State University Research Foundation
公开号:US05648318A1
公开(公告)日:1997-07-15
A method for inhibiting hatching of soybean cyst nematode eggs is provided comprising contacting said eggs with an effective inhibitory amount of a compound of formula (I): ##STR1## wherein R.sup.1 is H or OH, R.sup.2 is H or OH, R.sup.3 is H or (C.sub.1 -C.sub.4)alkyl, R.sup.4 is H or (C.sub.1 -C.sub.4)alkyl, R.sup.5 and R.sup.6 are individually H, (C.sub.1 -C.sub.5)alkyl, C.sub.3 -C.sub.6 (cycloalkyl)alkyl, C.sub.5 -C.sub.7 (cycloalkenyl)alkyl, (C.sub.6 -C.sub.12)aryl, (C.sub.7 -C.sub.12)aralkyl, trans(C.sub.4 -C.sub.5)alkenyl, allyl or furan-2-ylalkyl or together are (C.sub.2 -C.sub.5)alkylene, or (C.sub.3 -C.sub.5)alkylidene or 1,2-phenylene, optionally substituted by OH, O(C.sub.1 -C.sub.3)alkyl, SH, phenyl or N(R.sup.7)(R.sup.8), wherein R.sup.7 and R.sup.8 are individually H, (C.sub.1 -C.sub.3)alkyl or phenyl; R.sup.9 =H or (C.sub.1 -C.sub.4)alkyl, n is 0 or 1 and wherein the bond represented by --- is present when n=0 or absent when n=1; or an agronomically-acceptable salt thereof.
提供了一种抑制大豆囊蠕虫卵孵化的方法,包括将所述卵与式(I)的化合物的有效抑制量接触:##STR1##其中R.sup.1为H或OH,R.sup.2为H或OH,R.sup.3为H或(C.sub.1 -C.sub.4)烷基,R.sup.4为H或(C.sub.1 -C.sub.4)烷基,R.sup.5和R.sup.6分别为H,(C.sub.1 -C.sub.5)烷基,C.sub.3 -C.sub.6(环烷基)烷基,C.sub.5 -C.sub.7(环烯基)烷基,(C.sub.6 -C.sub.12)芳基,(C.sub.7 -C.sub.12)芳基烷基,反式(C.sub.4 -C.sub.5)烯基,烯丙基或呋喃-2-基烷基,或者一起为(C.sub.2 -C.sub.5)烷基,或(C.sub.3 -C.sub.5)烷基亚甲基或1,2-苯基亚甲基,可选择地由OH,O(C.sub.1 -C.sub.3)烷基,SH,苯基或N(R.sup.7)(R.sup.8)取代,其中R.sup.7和R.sup.8分别为H,(C.sub.1 -C.sub.3)烷基或苯基;R.sup.9=H或(C.sub.1 -C.sub.4)烷基,n为0或1,其中当n=0时,由---表示的键存在,当n=1时不存在;或其农学上可接受的盐。