Pironetin, a novel plant growth regulator produced by Streptomyces sp. NK10958. II. Structural elucidation.
A novel plant growth regulator, pironetin was isolated from the culture broth of Streptomyces sp. NK10958. The structure of pironetin was determined to be (5R,6R)-5-ethyl- 5,6-dihydro-6-[(E)-(2R,3S,4R,5S)-2-hydroxy-4-methoxy-3,5-dimethyl-7- nonenyl]-2H-pyran-2-one by FAB-MS, 1H and 13C NMR, COSY, COLOC, DEPT, IR, X-ray crystallographic analyses and adapted Mosher's method.
Kobayashi
S
S
Applied Microbiology Research Center, Nippon Kayaku Co. Ltd., Saitama, Japan.
Tsuchiya
K
K
Kurokawa
T
T
Nakagawa
T
T
Shimada
N
N
Iitaka
Y
Y
D018360:Crystallography, X-Ray; D004952:Esters; D009682:Magnetic Resonance Spectroscopy; D008968:Molecular Conformation; D010937:Plant Growth Regulators / Q000096:biosynthesis / Q000737:chemistry*; D011753:Pyrones / Q000737:chemistry*; D016339:Spectrometry, Mass, Fast Atom Bombardment; D013055:Spectrophotometry, Infrared; D013302:Streptomyces / Q000378:metabolism
D004952:Esters; D010937:Plant Growth Regulators; D011753:Pyrones; C088446:pironetin