Bibliografisk träff 2010-11-02 7-Nor-ergosterolide, a pentalactone-containing norsteroid and related steroids from the marine-derived endophytic Aspergillus ochraceus EN-31. Cui CM, Li XM, Meng L, Li CS, Huang CG, Wang BG. J Nat Prod · research support, non-u.s. gov't; journal article · DOI 10.1021/np100386q