1. IAA is a derivative of indole , containing a carboxymethyl substituent. 2. Some 200 dimeric indole alkaloids are known with two indole groups. 3. Some 200 dimeric indole alkaloids are known with two indole groups. 4. Yuehchukene consists of a tetracylic unit with a C6 indole substituent. 5. The effects described are similar to those of indole tryptamine psychedelics. 6. Indole is a particularly active substrate; the reaction provides gramine derivatives.7. Aminals are encountered in, for instance, the Fischer indole synthesis. 8. An example is tubulosine consisting of indole and isoquinoline fragments. 9. Later, the plants were joined by pure preparations of indole alkaloids. 10. This enzyme participates in terpene indole and ipecac alkaloid biosynthesis.
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