#$%^&*AU2012201869A120120503.pdf#####Abstract A process of the large-scale fermentation of a highly productive ansamitocin-producing strains. A method for isolating crude ansamitocins. A method for purifying ansamitocins. 32508941 (GHMaNrs) P75838AU1Fig. 1. Structures of Ansamitocins 0R R Cl HA B P-0 H CH3OL N \C H 3 P-1 GOGH 3 20 12 C3P2 COCH2CH3 21 16 17 8H 7 P-3 COCH(CH3)2 9 I - COCH2CH2CH3 153~~ 10 P- COCH2GH(CH3)2 14 12 5~H H CH3 EH3 P-4 COCH2CH 2CH2CH 3