1-Amino-19-guanidino-11-methoxy-4,9,12-triazanonadecane-10,13-dione 114760-35-9 15-Deoxy-11-O-methylspergualin Deoxymethylspergualin Deoxymethyspergualin Heptanamide, 7-((aminoiminomethyl)amino)-N-(2-((4-((3-amino propyl)amino)butyl)amino)-1-methoxy-2-oxoethyl)-, (S)- MeDSG Methyldeoxyspergualin