Abstract: A sealed glass container containing therein a stable, injectable, sterile, pyrogen-free doxorubicin anti-tumor composition in a solution which consists essentially of a physiologically acceptable salt of doxorubicin dissolved in a physiologically acceptable solvent therefor, wherein said solution has not been reconstituted from a lyophilizate, and wherein said solution has a pH of from 2.5-3.5 and a concentration of said doxorubicin of from 0.1 to 100 mg/ml.

Abstract: A process for preparing a compound of the formula I: ##STR1## or pharmaceutical acceptable salts thereof wherein X is --NR,--, --S(O).sub.g --, or --O--; R.sub.1 is --H, C.sub.1-6 alkyl optionally substituted with one or more --OH, --CN, or halo, or R.sub.1 is --(CH.sub.2).sub.h -aryl, --COR.sub.1-1, 13 COOR.sub.1-2, --CO--(CH.sub.2).sub.h --COR.sub.1-1, C.sub.1-6 alkyl sulfonyl, --SO.sub.2 --(CH.sub.2).sub.h -aryl, or --(CO).sub.i -Het; R.sub.2 is --H, C.sub.1-6 alkyl, --(CH.sub.2).sub.h -aryl, or halo; R.sub.3 and R.sub.4 are the same or different and are --H or halo; R.sub.5 is --H, C.sub.1-12 alkyl optionally substituted with one or more halo, C.sub.3-12 cycloalkyl, C.sub.1-6 alkoxy. The compounds are useful antimicrobial agents.