13.beta.-alkylmilbemycin derivatives for controlling parasites o
14 and 15 membered ring compounds
14-Acyloxy-2'-halo-anthracycline anti-cancer antibiotics
14-Amino steroid derivatives, a process for the preparation ther
14-membered macrolides derived from leucomycins
16-decarboxy-16-hydroxy derivatives of amphotericin B
16-membered macrolide derivatives
16-membered macrolide derivatives and process for producing the
18-membered macrocycles and analogs thereof