Výsledky vyhledávání - "Fumina Ohashi"

Akademický článek

pH Stability and Antioxidant Power of CycloDOPA and Its Derivatives

Autor: Shiori Nakagawa, Zetryana Puteri Tachrim, Natsumi Kurokawa, Fumina Ohashi, Yasuko Sakihama, Takeyuki Suzuki, Yasuyuki Hashidoko, Makoto Hashimoto

Publikováno v: Molecules, Vol 23, Iss 8, p 1943 (2018)

CycloDOPA (leukodopachrome), a well known metabolite of tyrosine, is a precursor of melanine in mammalian organisms and of the pigment betalain in plants. However, the isolation of cycloDOPA from natural sources has not been widely reported. In the p

Externí odkaz: https://doaj.org/article/a799da34e086433f88959d6ab7f8636f

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Akademický článek

Synthesis of Chiral TFA-Protected α-Amino Aryl-Ketone Derivatives with Friedel–Crafts Acylation of α-Amino Acid N-Hydroxysuccinimide Ester

Autor: Zetryana Puteri Tachrim, Kazuhiro Oida, Haruka Ikemoto, Fumina Ohashi, Natsumi Kurokawa, Kento Hayashi, Mami Shikanai, Yasuko Sakihama, Yasuyuki Hashidoko, Makoto Hashimoto

Publikováno v: Molecules, Vol 22, Iss 10, p 1748 (2017)

Chiral N-protected α-amino aryl-ketones are one of the useful precursors used in the synthesis of various biologically active compounds and can be constructed via Friedel–Crafts acylation of N-protected α-amino acids. One of the drawbacks of this

Externí odkaz: https://doaj.org/article/95e46608c5c94e38afc4f49551375c4e

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Akademický článek

Base-Mediated One-Pot Synthesis of Aliphatic Diazirines for Photoaffinity Labeling

Autor: Lei Wang, Zetryana Puteri Tachrim, Natsumi Kurokawa, Fumina Ohashi, Yasuko Sakihama, Yasuyuki Hashidoko, Makoto Hashimoto

Publikováno v: Molecules, Vol 22, Iss 8, p 1389 (2017)

Aliphatic diazirines have been widely used as prominent photophores for photoaffinity labeling owing to their relatively small size which can reduce the steric effect on the natural interaction between ligands and proteins. Based on our continuous ef

Externí odkaz: https://doaj.org/article/865aff441b504c909f03d43539f89767

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Synthesis of TFA-protected α-Amino Acid Chloride via a Vilsmeier Reagent for Friedel–Crafts Acylation

Autor: Zetryana Puteri Tachrim, Makoto Hashimoto, Kazuhiro Oida, Lei Wang, Takeyuki Suzuki, Fumina Ohashi, Natsumi Kurokawa

Publikováno v: Letters in Organic Chemistry. 17:645-653

α-Amino acid chlorides are reactive coupling agents in amide (peptide) formation. The Vilsmeier reagent ((chloromethylene)dimethylammonium chloride) offers a convenient way to prepare α-amino acid chlorides for peptide synthesis. Its use with N-tri

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c3355df8d99b07ae1fff47bab2516a65
https://doi.org/10.2174/1570178617666200207111127

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Novel Synthesis and Properties of Optically Pure N-Trifluoroacetylphenylglycine Hydroxysuccinimide Ester

Autor: Makoto Hashimoto, Zeping Wang, Shoko Ishikawa, Fumina Ohashi, Reo Sagisaka, Yuta Murai, Zetryana Puteri Tachrim, Takeyuki Suzuki

Publikováno v: HETEROCYCLES. 105:406

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::72e595739d8307b7e5f353223fa7b391
https://doi.org/10.3987/com-22-s(r)11

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Optimization of sucrose 1’-position modification with 3-(trifluoromethyl)diazirinyl benzylbromide derivatives for photoaffinity labeling

Autor: Haruna Wakasa, Yasuyuki Hashidoko, Natsumi Kurokawa, Makoto Hashimoto, Zetryana Puteri Tachrim, Yasuko Sakihama, Takeyuki Suzuki, Fumina Ohashi, Lei Wang

Publikováno v: ARKIVOC, Vol 2018, Iss 7, Pp 58-65 (2018)

Sucrose is well known as naturally occurring sweeteners. Photoreactive sucrose derivative containing 3-(trifluoromethyl) diazirinyl moiety is designed for photoaffinity labeling. As 1'-hydroxyl group of sucrose is well known to be less reactive than

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bc8c9b6670bd286f9711483b26d5556e
http://hdl.handle.net/2115/74375

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Synthesis of Chiral TFA-Protected α-Amino Aryl-Ketone Derivatives with Friedel–Crafts Acylation of α-Amino Acid N-Hydroxysuccinimide Ester

Autor: Mami Shikanai, Kento Hayashi, Natsumi Kurokawa, Makoto Hashimoto, Haruka Ikemoto, Kazuhiro Oida, Yasuyuki Hashidoko, Yasuko Sakihama, Fumina Ohashi, Zetryana Puteri Tachrim

Publikováno v: Molecules, Vol 22, Iss 10, p 1748 (2017)
Molecules; Volume 22; Issue 10; Pages: 1748
Molecules : A Journal of Synthetic Chemistry and Natural Product Chemistry

Chiral N-protected alpha-amino aryl-ketones are one of the useful precursors used in the synthesis of various biologically active compounds and can be constructed via Friedel-Crafts acylation of N-protected alpha-amino acids. One of the drawbacks of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5a9b56d67272a0835da08b6b5a602f25
https://www.mdpi.com/1420-3049/22/10/1748

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