17-desmethylrapamycin and analogues thereof, methods for their production and their use as immunosupressants, anticancer agents, antifungal agents, etc

The present invention relates to production of polyketides and other natural products and to libraries of compounds and individual novel compounds. Therefore in one aspect the present invention provides 17-desmethylrapamycin and analogues thereof, methods for their production, including recombinant strains, and isolation and uses of the compounds of the invention. In a further aspect the present invention provides for the use of 17-desmethylrapamycin and analogues thereof in the induction or maintenance of immunosuppression, the stimulation of neuronal regeneration or the treatment of cancer, B-cell malignancies, fungal infections, transplantation rejection, graft vs. host disease, autoimmune disorders, diseases of inflammation vascular disease and fibrotic diseases, and in the regulation of wound healing.