Synonyms: 1-Oxa-4,7,10,13,16,19,22,25-octaazacyclooctacosane,cyclic peptide deriv.;(R)-N-(3-Hydroxy-1-oxotetradecyl)-L-seryl-D-2,4-diaminobutanoyl-L-2,4-diaminobutanoyl-D-homoseryl-L-ornithyl-L-allothreonyl-(Z)-2,3-didehydro-2-aminobutanoyl-threo-3-hydroxy-L-a-aspartyl-4-chloro-L-threonine b1-lactone; 3-(2,4-Diaminobutanoicacid)syringotoxin; L-Threonine, N-(3-hydroxy-1-oxotetradecyl)-L-seryl-D-2,4-diaminobutanoyl-L-2,4-diaminobutanoyl-D-homoseryl-L-ornithyl-L-allothreonyl-(Z)-2,3-didehydro-2-aminobutanoyl-threo-3-hydroxy-L-a-aspartyl-4-chloro-, b1-lactone, (R)-