Cyclic peptide antifungal agents and process for preparation...

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Peptide containing doai

Reexamination Certificate

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C514S002600, C514S011400, C530S317000, C530S319000

Reexamination Certificate

active

06916784

ABSTRACT:
Provided are compounds of the formula (1):wherein R′ is hydrogen, methyl or NH2C(O)CH2—;R″ and R′″ are independently methyl or hydrogen;R adn Ryare independently hydroxy or hydrogen;R1is hydroxy, hydrogen, or hydroxysulfonyloxy;R7is hydroxy, hydrogen, hydroxysulfonyloxy or phosphonooxy;R2is a novel acyl side chain. Also provided are novel formulations, methods of inhibiting fungal and parasitic activity, and a process for preparing dideoxy (R═H) forms of the compounds.

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