Research Topics
| Hiroaki MiyaokaSummaryAffiliation: Tokyo University of Pharmacy and Life Science Country: Japan Publications
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Detail Information
Publications
PLA2 inhibitory activity of marine sesterterpenoids cladocorans, their diastereomers and analoguesHiroaki Miyaoka
School of Pharmacy, Tokyo University of Pharmacy and Life Science, Japan
Chem Pharm Bull (Tokyo) 54:268-70. 2006..Inhibition of secretory phospholipase A(2) (sPLA(2)) by cladocorans A and B and their diastereomers almost equaled that of manoalide...
Terpene isocyanides, isocyanates, and isothiocyanates from the Okinawan marine sponge Stylissa spHidemichi Mitome
School of Pharmacy, Tokyo University of Pharmacy and Life Science, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
J Nat Prod 67:833-7. 2004..along with 12 known related compounds. Structural determinations of these compounds were made by spectroscopic analysis, and assessment was made of their cytotoxicity toward HeLa cells...
8,17-Epoxybriarane diterpenoids, briaranolides A-J, from an Okinawan Gorgonian Briareum spAyako Hoshino
School of Pharmacy, Tokyo University of Pharmacy and Life Science, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
J Nat Prod 68:1328-35. 2005..The structure of the diterpenoids was determined on the basis of spectroscopic analysis, chemical conversions, and X-ray analysis...
New polyhydroxylated sterols stylisterols A-C and a novel 5,19-cyclosterol hatomasterol from the Okinawan marine sponge Stylissa spHidemichi Mitome
School of Pharmacy, Tokyo University of Pharmacy and Life Science, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
Steroids 70:63-70. 2005..Structural determinations of these compounds were made by spectroscopic analysis and chemical conversion. Assessment of cytotoxicity toward HeLa cells was also determined...
New strongylophorines from the Okinawan marine sponge Petrosia (Strongylophora) corticataAyako Hoshino
School of Pharmacy, Tokyo University of Pharmacy and Life Science, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
J Nat Prod 66:1600-5. 2003..Assessment was also made of the cytotoxicity of strongylophorines-1, -2, -3, -4, -22 (1), -23 (2), and -24 (3) toward HeLa cells...
Practical synthesis of a key intermediate for lactacystin from (R)-4-hydroxymethyl-2-phenyl-4,5-dihydrooxazol-4-ylmethyl acetateHiroaki Miyaoka
School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo, Japan
Chem Pharm Bull (Tokyo) 56:738-41. 2008..R)-4-Hydroxymethyl-2-phenyl-4,5-dihydrooxazol-4-ylmethyl acetate is a useful chiral building block for the synthesis of biologically active compounds containing alpha-substituted alpha-amino acid moieties...
Synthesis of marine diterpene isocyanide (-)-kalihinol Y and diterpene isothiocyanate (-)-10-epi-kalihinol IHiroaki Miyaoka
School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432 1 Horinouchi, Hachioji, Tokyo 192 0392, Japan
Chem Pharm Bull (Tokyo) 60:1224-6. 2012..The absolute structures of these compounds were confirmed by these syntheses...
Total synthesis of antimalarial diterpenoid (+)-kalihinol AHiroaki Miyaoka
School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432 1 Horinouchi, Hachioji, Tokyo 192 0392, Japan
Chem Commun (Camb) 48:901-3. 2012....
Total synthesis of cladocorans A and B: a structural revisionHiroaki Miyaoka
School of Pharmacy, Tokyo University of Pharmacy and Life Science, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
J Org Chem 68:3476-9. 2003..Cladocoran B is thus clearly shown to be an olefinic regioisomer of dysidiolide and cladocoran A as its acetate...
Total synthesis and absolute configuration of the marine norditerpenoid xestenoneKoichiro Ota
School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432 1 Horinouchi, Hachioji, Tokyo, Japan
Mar Drugs 7:654-71. 2009..The relative and absolute configurations of xestenone were thus successfully determined by this synthesis...
Synthesis and anti-tumor activity of new steroidal nuclear analogues of aragusterol AHidemichi Mitome
School of Pharmacy, Tokyo University of Pharmacy and Life Science, Tokyo, Japan
Chem Pharm Bull (Tokyo) 51:640-5. 2003..The in vitro anti-proliferative activity of each of these analogues toward KB cells as well as in vivo anti-tumor activity of 5-epiaragusterol A (2) previously synthesized by the authors and 3 were assessed...
Total synthesis of marine eicosanoid (-)-hybridalactoneKoichiro Ota
School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432 1 Horinouchi, Hachioji, Tokyo 192 0392, Japan
Chemistry 18:13531-7. 2012..Further elaboration of the latter compounds through desulfonylation, epoxidation, oxidation, Wittig olefination and Shiina macrolactonization afforded (-)-hybridalactone...
A new sesquiterpenoid quinone and other related compounds from the Okinawan marine sponge Dactylospongia elegansHidemichi Mitome
School of Pharmacy, Tokyo University of Pharmacy and Life Science, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
J Nat Prod 66:46-50. 2003..The new sesquiterpenoid quinone, neodactyloquinone (1), and dactylolactones A-D (2-5) were isolated from the Okinawan sponge Dactylospongia elegans. The structures of these compounds were determined by spectroscopic analysis...
