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Structure‐Activity Relationships of Terpendole E and Its Natural Derivatives.
Author(s) -
Nagumo Yoko,
Motoyama Takayuki,
Hayashi Toshiaki,
Hirota Hiroshi,
Aono Harumi,
Kawatani Makoto,
Osada Hiroyuki,
Usui Takeo
Publication year - 2017
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201602015
Subject(s) - natural product , kinesin , indole test , inhibitory postsynaptic potential , prenylation , chemistry , diterpene , stereochemistry , biochemistry , biology , microbiology and biotechnology , microtubule , enzyme , neuroscience
Terpendole E (TerE) is the first natural product that inhibits mitotic kinesin Eg5 (kinesin spindle protein). Recently, TerE is suggested to have a different binding site and/or inhibitory mechanism than other L5 loop‐binding type Eg5 inhibitors. Here, we report the structure‐activity relationships (SARs) of natural TerE derivatives, including two compounds not reported before. Our SAR results indicated that the paspaline‐like indole‐diterpene skeleton is important for Eg5 inhibition, and that both further oxidation except for 11‐position and further prenylation decreases the Eg5 inhibitory activity.