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A First Synthesis of Isofagar-idine:Topoisomerase I Inhibitor
Cho, Won-Jea,Miyoji Hanaoka The Pharmaceutical Society of Korea 1996 Archives of Pharmacal Research Vol.19 No.3
We have reported the convenient biomimetic methodology for the synthesis of all kinds of substituent pattern benzo[c]phenanthridine alkaloids (Hanaoka et al., 1990; Hanaoka et al., 1991). Regioselective demethylation of C-8 position on oxyfagaridine (5), an intermediate for the synthesis of Fagaridine (4), would afford the precursor for the synthesis of Isofagaridine because the strong hydrogen bonding between amide and hydroxyl group of C-7 position probably resists to be reacted with week base and electrophiles. Thus, a selective alkylation of dihydroxy compound supposed to be possible and be lead to the target compound, Isofagaridine.
Misaki Hanaoka,HIDEHIRO KANEDA,SHINKI OYABU,Yasuki Hattori,Kotomi Tanaka,Sota Ukai,Kazuyuki Shichi,Takehiko Wada,Toyoaki Suzuki,Kentaroh Watanabe,Koichi Nagase,Shunsuke Baba,Chihiro Kochi 한국천문학회 2017 天文學論叢 Vol.32 No.1
To realize large-format compact array detectors covering a wide far-infrared wavelength range up to 200 $\mu$m, we have been developing Blocked-Impurity-Band (BIB) type Ge detectors with the room-temperature surface-activated wafer bonding technology provided by Mitsubishi Heavy Industries. We fabricated various types of $p^+$-$i$ junction devices which possessed a BIB-type structure, and evaluated their spectral response curves using a Fourier transform spectrometer. From the Hall effect measurement, we also obtained the physical characteristics of the $p^+$ layers which constituted the $p^+$-$i$ junction devices. The overall result of our measurement shows that the $p^+$-$i$ junction devices have a promising applicability as a new far-infrared detector to cover a wavelength range of 100--200 μm.
박찬,Tatsuya, Hanaoka,Toshihiko, Masui,이동근,정태용 한국기후변화학회 2019 한국기후변화학회지 Vol.10 No.1
This study analyzes potential CO2 emission pathways in the Korean residential sector by using the bottom-up optimization model, AIM/Enduse. This study focuses on: 1) estimating potential emissions considering future changes in population, GDP, and temperature, 2) assessing the mitigation potential of CO2 with a mitigation measures including carbon tax. 3) discussing co-benefits of air pollutants mitigation such as NOx, SO2 in the context of climate mitigation measures in the Korean residential sector. As a result, population and GDP variation shows an overwhelming impact on CO2 emission. Climate change may help to reduce energy consumption and CO2 emission in Korea due to heating and hot-water use demand decreasing. The carbon tax of 20, 50, 100, 200, 300, 500, 1000 US$/tCO2 in 2050 can reduce 1.0%, 2.5%, 3.6%, 9.6%, 12.2%, 14.1%, and 19.7% of CO2 emission respectively compared to BaU scenario of SSP2 with current technology selection behavior based on life cycle cost. There is also a benefit of large reduction potential of air pollutants, in the range of 5-40% reductions in with CO2 mitigation measures.