. "5-Amino-2-aminomethyl-6-[4,6-diamino-2-(3,4-dihydroxy-5-hydroxymethyl-tetrahydro-furan-2-yloxy)-3-hydroxy-cyclohexyloxy]-tetrahydro-pyran-3,4-diol(Ribostamycin)" . "22 (Ribostamycin)" . . . . . . .