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Synthesis and electrochemical properties of the naturally occurring free radical scavenger carazostatin
journal contributionposted on 17.01.2013, 14:43 by P. Mark Jackson, Christopher J. Moody, Roger J. Mortimer
A short synthesis of the naturally occurring free radical scavenger carazostatin 1 starting from indol-3-ylacetic acid is described, the key step being the regiospecific Diels–Alder reaction of the indolopyrone 2 with ethyl trimethylsilylpropynoate. Electrochemical studies on carazostatin and some of its derivatives show it to be more easily oxidised than butylated hydroxytoluene (BHT).