6-Bromotryptamine Derivatives from the Gulf of California Tunicate Didemnum candidum

Abstract

TWO slightly different specimens of the encrusting grey tunicate Dihnum candidum were collected in the southern Gulf of California and were examined separately. 6-
\nBromotryptamine [l] was isolated from the first specimen (87-045). The second specimen (87-061) contained 2,2-bis(b’-bromo-3‘-indolyl)ethylamine[ 2] and 2,5-bis(6’-bromo-3’-indoly1) piperazine f31.