The disclosure relates to a compound of the formula (I) wherein R1 is H, C(O)—(C1-C6)alkyl or C(O)—O—(C1-C6)alkyl; R2 is OH, NH2, NH—(C1-C6)alkyl, NH—(C1-C4)alkylene-phenyl or NH—(C1-C4)alkylene-pyridyl; R3 and R4 are independently of each other H or OH, or R3 and R4 together are ═O; and m and n are independently of one another 0, 1 or 2; in any stereochemical form, or a mixture of any stereochemical forms in any ratio, or a physiologically acceptable salt thereof, obtainable from Actinomadura namibiensis (DSM 6313), and its use for the treatment of bacterial infections, viral infections and/or pain, and pharmaceutical composition comprising it.