Synthesis 2013; 45(22): 3106-3117
DOI: 10.1055/s-0033-1338543
paper
© Georg Thieme Verlag Stuttgart · New York

Biology- and Diversity-Oriented Domino Reactions for Synthesis of AMPA Receptor Antagonist IKM-159 and Analogues

Masato Oikawa*
Yokohama City University, Seto 22-2, Kanazawa-ku, Yokohama 236-0027, Japan   Fax: +81(45)7872403   Email: moikawa@yokohama-cu.ac.jp
,
Yuuki Kasori
Yokohama City University, Seto 22-2, Kanazawa-ku, Yokohama 236-0027, Japan   Fax: +81(45)7872403   Email: moikawa@yokohama-cu.ac.jp
,
Lisa Katayama
Yokohama City University, Seto 22-2, Kanazawa-ku, Yokohama 236-0027, Japan   Fax: +81(45)7872403   Email: moikawa@yokohama-cu.ac.jp
,
Etsuko Murakami
Yokohama City University, Seto 22-2, Kanazawa-ku, Yokohama 236-0027, Japan   Fax: +81(45)7872403   Email: moikawa@yokohama-cu.ac.jp
,
Yuya Oikawa
Yokohama City University, Seto 22-2, Kanazawa-ku, Yokohama 236-0027, Japan   Fax: +81(45)7872403   Email: moikawa@yokohama-cu.ac.jp
,
Yuichi Ishikawa
Yokohama City University, Seto 22-2, Kanazawa-ku, Yokohama 236-0027, Japan   Fax: +81(45)7872403   Email: moikawa@yokohama-cu.ac.jp
› Author Affiliations
Further Information

Publication History

Received: 02 August 2013

Accepted after revision: 19 August 2013

Publication Date:
12 September 2013 (online)


Abstract

By natural product inspired diversity-oriented synthesis, we had developed a new class of selective antagonist, IKM-159, for the AMPA receptor. Here, we report syntheses of IKM-159 and skeletally diverse five analogues in racemic forms, two of which are heterotricycles and the other three compounds are truncated analogues, to study the structure–activity relationships. The key reactions are two domino reactions including Ugi/Diels–Alder reaction and domino metathesis reaction. An exceptionally high level of regiocontrol in the cross metathesis reaction is also reported.

Supporting Information