112451 ⎘
Preparation of heterocyclic carbon compounds with only O, N, S, Se or Te as ring hetero atoms containing at least two hetero rings condensed among themselves or condensed with a common carbocyclic ring system, e.g. rifamycin; Heterocyclic compound containing in the condensed system at least one hetero ring having nitrogen atoms and oxygen atoms as the only ring heteroatoms containing the rifamycin nucleus
Methods and compositions for recombinase-based genetic diversification
#2Methods for increasing molecular diversity of polyketides and non-ribosomal proteins
#3Fermentation process for the production of rapamycin
#4Rifamycin biosynthesis gene cluster