264234-05-1Relevant articles and documents
Minor furanocoumarins and coumarins in grapefruit peel oil as inhibitors of human cytochrome P450 3A4
Cesar, Thais B.,Manthey, John A.,Myung, Kyung
, p. 1702 - 1704 (2009)
A new cyclic acetal (1) of marmin (6′,7′-dihydroxy-7- geranyloxycoumarin), two new cyclic acetals (5, 6) of 6′,7′- dihydroxybergamottin, and the known compounds marmin (2), 7-geranyloxycoumarin (3), bergamottin (4), and 6′,7′-dihydroxybergamottin (7) were
Selective oxidation reactions of natural compounds with hydrogen peroxide mediated by methyltrioxorhenium
Amato, Maria E.,Ballistreri, Francesco P.,Pappalardo, Andrea,Tomaselli, Gaetano A.,Toscano, Rosa M.,Sfrazzetto, Giuseppe Trusso
, p. 13754 - 13763 (2014/01/06)
We have investigated the oxidative behaviour of natural compounds such as methyl abietate (1), farnesyl acetate (2), a-ionone (3), β-ionone (4), methyl linolelaidate (5), methyl linolenate (6) and bergamottin (7) with the oxidant system methyltrioxo-rhenium/ H2O2/pyridine. The reactions, performed in CH2Cl2/H2O at 25 °C, have shown good regioand stereoselectivity. The oxidation products were isolated by HPLC or silica gel chromatography and characterized by MS(EI), 1H-, 13C-NMR, APT, gCOSY, HSQC, TOCSY and NOESY measurements. The selectivity seems to be controlled by the nucleophilicity of double bonds and by stereoelectronic and steric effects.
SYNTHESIS OF SPIRO ORTHO ESTERS, SPIRO ORTHO CARBONATES, AND INTERMEDIATES
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Page 38, (2008/06/13)
Ortho esters and ortho carbonates can be produced by alkylating esters and carbonates with, for example, the hexafluorophosphate salt of a trialkyl oxonium ion. The spiro species are useful intermediates in the synthesis of complex organic molecules. Synt
Paradisin C: A new CYP3A4 inhibitor from grapefruit juice
Ohta, Tomihisa,Maruyama, Takuro,Nagahashi, Minoru,Miyamoto, Yasuyo,Hosoi, Shinzo,Kiuchi, Fumiyuki,Yamazoe, Yasushi,Tsukamoto, Sachiko
, p. 6631 - 6635 (2007/10/03)
A new furanocoumarin derivative, paradisin C, was isolated from grapefruit juice as an inhibitor of cytochrome P450 (CYP) 3A4. Its stereochemistry was elucidated by spectroscopic methods. The stereochemistries of 17,18-dihydroxybergamottin and 17-epoxybergamottin were also elucidated.