Isolation and Characterization of Cyclic C33Botryococcenes and a Trimethylsqualene Isomer from Botryococcus braunii Race B.
Three cyclic C33botryococcenes and one new trimethylsqualene isomer were isolated from the B race, Showa (Berkeley) strain of Botryococcus braunii, which is known to produce large amounts of isoprenoid hydrocarbons ranging in carbon number from 30 to 34. Their purity was determined by GC-MS, and structures were characterized by 1D and 2D NMR. One of these molecules, cyclic C33-1 botryococcene (5), has an unusual connection of a methylenecyclohexane ring to the molecule backbone not seen before in botryococcenes. This report further adds to our knowledge of the wide range of isoprenoid hydrocarbon structures produced by B. braunii.
Mehmet
M
Tatli
Mandar T
MT
Naik
Laboratory of Aquatic Natural Products Chemistry, Graduate School of Agricultural and Life Sciences, University of Tokyo , Yayoi, Bunkyo, Tokyo 113-8657, Japan.|Japan Science and Technology Agency-Core Research for Evolutional Science and Technology (CREST) , Gobancho, Chiyoda, Tokyo 102-0076, Japan.
Shigeru
S
Okada
Lawrence J
LJ
Dangott
Timothy P
0000-0001-6032-8049
TP
Devarenne
D000460:Chlorophyta / Q000737:chemistry*; D008401:Gas Chromatography-Mass Spectrometry; D007536:Isomerism; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D013185:Squalene / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification; D013729:Terpenes / Q000737:chemistry / Q000302:isolation & purification*
D013729:Terpenes; C495559:trimethylsqualene; D013185:Squalene