2-Fluoroabscisic Acid Analogues: Their Synthesis and Biological Activities
摘要:
Fluorine was introduced into the 2-position of the side chain of abscisic acid (ABA) analogues by Wittig reaction of alpha-ionone derivatives with ethyl triethylphosphono-2-fluoroacetate. The effects of the fluorinated analogues were evaluated on inhibition of cr ess seed germination and inhibition of gibberellin-inducible alpha-amylase induction in embryoless barley half-seeds. (2E,4E)-2-Fluoro-5-(1'-hydroxy-2',6', ,6'-trimethyl-2'-cyclohexen-1'-yl)-3-methyl-2,4-pentadienoic acid (5b) showed potent inhibitory activity at the same level as ABA in the cress seed germination test, and 5b also inhibited gibberellin-inducible alpha-amylase induction at 4 x 10(-6), 3 times the concentration of ABA (1 x 10(-6)) for 50% inhibition of alpha-amylase production. 5b also showed dehydrin induction activity. These results indicate that fluorinated ABA analogues mimic ABA action and can be a lead for a plant growth regulator which regulates plant growth or protects plants from environmental stresses.
2-Fluoroabscisic Acid Analogues: Their Synthesis and Biological Activities
摘要:
Fluorine was introduced into the 2-position of the side chain of abscisic acid (ABA) analogues by Wittig reaction of alpha-ionone derivatives with ethyl triethylphosphono-2-fluoroacetate. The effects of the fluorinated analogues were evaluated on inhibition of cr ess seed germination and inhibition of gibberellin-inducible alpha-amylase induction in embryoless barley half-seeds. (2E,4E)-2-Fluoro-5-(1'-hydroxy-2',6', ,6'-trimethyl-2'-cyclohexen-1'-yl)-3-methyl-2,4-pentadienoic acid (5b) showed potent inhibitory activity at the same level as ABA in the cress seed germination test, and 5b also inhibited gibberellin-inducible alpha-amylase induction at 4 x 10(-6), 3 times the concentration of ABA (1 x 10(-6)) for 50% inhibition of alpha-amylase production. 5b also showed dehydrin induction activity. These results indicate that fluorinated ABA analogues mimic ABA action and can be a lead for a plant growth regulator which regulates plant growth or protects plants from environmental stresses.
2-Fluoroabscisic Acid Analogues: Their Synthesis and Biological Activities
作者:Bum Tae Kim、Yong Ki Min、Tadao Asami、No Kyun Park、Oh Young Kwon、Kwang Yun Cho、Shigeo Yoshida
DOI:10.1021/jf980265l
日期:1999.1.1
Fluorine was introduced into the 2-position of the side chain of abscisic acid (ABA) analogues by Wittig reaction of alpha-ionone derivatives with ethyl triethylphosphono-2-fluoroacetate. The effects of the fluorinated analogues were evaluated on inhibition of cr ess seed germination and inhibition of gibberellin-inducible alpha-amylase induction in embryoless barley half-seeds. (2E,4E)-2-Fluoro-5-(1'-hydroxy-2',6', ,6'-trimethyl-2'-cyclohexen-1'-yl)-3-methyl-2,4-pentadienoic acid (5b) showed potent inhibitory activity at the same level as ABA in the cress seed germination test, and 5b also inhibited gibberellin-inducible alpha-amylase induction at 4 x 10(-6), 3 times the concentration of ABA (1 x 10(-6)) for 50% inhibition of alpha-amylase production. 5b also showed dehydrin induction activity. These results indicate that fluorinated ABA analogues mimic ABA action and can be a lead for a plant growth regulator which regulates plant growth or protects plants from environmental stresses.