Pyrazolofluostatins A–C, Pyrazole-Fused Benzo[<i>a</i>]fluorenes from South China Sea-Derived <i>Micromonospora
rosaria</i> SCSIO N160
Wenjun Zhang
Chunfang Yang
Chunshuai Huang
Liping Zhang
Haibo Zhang
Qingbo Zhang
Cheng-shan Yuan
Yiguang Zhu
Changsheng Zhang
10.1021/acs.orglett.6b03745.s002
https://acs.figshare.com/articles/dataset/Pyrazolofluostatins_A_C_Pyrazole-Fused_Benzo_i_a_i_fluorenes_from_South_China_Sea-Derived_i_Micromonospora_rosaria_i_SCSIO_N160/4541338
Pyrazolofluostatins
A–C (<b>1</b>–<b>3</b>), three new benzo[<i>a</i>]fluorenes with an unprecedented
carbon skeleton, were obtained from the South China Sea-derived <i>Micromonospora rosaria</i> SCSIO N160. Their structures were
elucidated by extensive spectroscopic analyses. The structure of pyrazolofluostatin
A (<b>1</b>) was confirmed by X-ray crystallographic analysis.
Notably, <b>1</b>–<b>3</b> possessed a benzo[<i>cd</i>]indeno[2,1-<i>f</i>]indazol skeleton with a
pyrazole-fused 6/5/6/6/5 pentacyclic ring system. Pyrazolofluostatin
A (<b>1</b>) showed moderate antioxidation activity (EC<sub>50</sub> 48.6 μM).
2017-01-11 18:53:28
fluorene
benzo
spectroscopic analyses
EC 50 48.6 μ M
antioxidation activity
South China Sea-derived Micromonospora rosaria SCSIO N 160.
South China Sea-Derived Micromonospora rosaria SCSIO N 160 Pyrazolofluostatins
carbon skeleton