title: Secondary metabolites from the endophytic fungi Penicillium polonicum and Aspergillus fumigatus.
abstract: Two new compounds, rhodostegone (1) from endophytic fungus Penicillium polonicum and cyclo-(l-Val-l-Leu) (2) from Aspergillus fumigatus, together with six known diketopiperazines (3-8), were isolated. The structures of these compounds were characterized through a combination of extensive IR, MS, NMR, and CD analysis.
authors.affiliation: State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China.
authors.forename: Guang-Zhi
authors.initials: GZ
authors.lastname: Ding
authors.forename: Jing
authors.initials: J
authors.lastname: Liu
authors.forename: Jia-Ming
authors.initials: JM
authors.lastname: Wang
authors.forename: Lei
authors.initials: L
authors.lastname: Fang
authors.forename: Shi-Shan
authors.initials: SS
authors.lastname: Yu
mesh_terms: D001232:Aspergillus fumigatus / Q000737:chemistry*; D054659:Diketopiperazines / Q000737:chemistry / Q000302:isolation & purification*; D007887:Fabaceae / Q000382:microbiology; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D010407:Penicillium / Q000737:chemistry*; D010456:Peptides, Cyclic / Q000737:chemistry / Q000302:isolation & purification*; D011714:Pyrans / Q000737:chemistry / Q000302:isolation & purification*; D013237:Stereoisomerism
chemical_list: D054659:Diketopiperazines; D010456:Peptides, Cyclic; D011714:Pyrans; C582466:cyclo-(Val-Leu); C582465:rhodostegone