G. Oronzo

Unusual rearrangement of 3-hydrazino-rifamycins leading to the enlargement of the "natural" ansa bridge.

G. Franceschi, M. Ballabio, L. Marsili, 1982, The Journal of antibiotics.

New rifamycins modified at positions 3 and 4. Synthesis, structure and biological evaluation.

L. Marsili, A. Vigevani, B. Gioia, 1981, The Journal of antibiotics.