Synonyms: SulfomycinI, 58-(1-carboxyethenyl)-14-de(2-hydroxypropylidene)-21-O-demethyl-14-ethylidene-;19H,26H-8,5:18,15:25,22:32,29:42,39-Pentanitrilo-5H,15H,39H-pyrido[3,2-k1][1,11,25,18,35,4,7,14,21,28,31]trioxadithiahexaazacyclotetracontine,sulfomycin I deriv.; Thiotipin