Synonyms: SyringomycinA1, 1-[N-(3-hydroxy-1-oxotetradecyl)-L-serine]-, (R)-;1-Oxa-5,8,11,14,17,20,23,26-octaazacyclononacosane, cyclic peptide deriv.;L-Threonine,N-(3-hydroxy-1-oxotetradecyl)-L-seryl-D-seryl-L-2,4-diaminobutanoyl-D-2,4-diaminobutanoyl-L-arginyl-L-phenylalanyl-(Z)-2,3-didehydro-2-aminobutanoyl-threo-3-hydroxy-L-a-aspartyl-4-chloro-, b1-lactone, (R)-