WF11899A, also known as FR901379, is a naturally occurring secondary metabolite isolated from fermentation broth of Coleophoma empetri F-11899 [T. Iwamoto, et al, the Journal of Antibiotics, 1084-1091 (1994)]. This compound belongs to the echinocandin type of cyclic lipopeptide, and is used as a key intermediate for synthesis of Micafungin Sodium [CAS # 208538-73-2], etc. Pneumocandin A0 is another fermentation product reported as intermediate for synthesis of Micafungin Sodium

MCF01: Micafungin (Acid) [ CAS # 235114-32-6 ]

MCF02: Micafungin Sodium [ CAS # 208538-73-2 ] ( Synonym: FK463 )

MCF03: WF11899A ( Synonym: FR901379 )

MCF04: Pneumocandin A0 [CAS # 539823-80-8 ; 120300-08-5 ]