Oyama, Kin-Ichi: search on Z-Library

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1

Flower Color Development and Nano-Science

Kumi Yoshida, Kin-ichi Oyama, Tadao Kondo

Journal:

Year:

2004

File:

PDF, 10 KB

2004

2

Total synthesis of apigenin 7,4′-di-O-β-glucopyranoside, a component of blue flower pigment of Salvia patens, and seven chiral analogues

Kin-ichi Oyama, Tadao Kondo

Journal:

Year:

2004

Language:

english

File:

PDF, 431 KB

english, 2004

3

Chiral Molecular Recognition on Formation of a Metalloanthocyanin: A Supramolecular Metal Complex Pigment from Blue Flowers of Salvia patens

Tadao Kondo, Kin-ichi Oyama, Kumi Yoshida

Journal:

Angewandte Chemie International Edition

Year:

2001

Language:

english

File:

PDF, 141 KB

english, 2001

4

Synthesis of 2′-Modified Cyclic Bis(3′–5′)diadenylic Acids ( c -di-AMPs) and Their Promotion of Cell Division in a Freshwater Green Alga

Tezuka, Takafumi, Suzuki, Noritaka, Ishida, Keigo, Oyama, Kin-ichi, Aoki, Setsuyuki, Tsukamoto, Masaki

Journal:

Chemistry Letters

Year:

2012

Language:

english

File:

PDF, 439 KB

english, 2012

5

Direct Observation of Hydrangea Blue-Complex Composed of 3-O-Glucosyldelphinidin, Al3+ and 5-O-Acylquinic Acid by ESI-Mass Spectrometry

Ito, Takaaki, Oyama, Kin-ichi, Yoshida, Kumi

Journal:

Year:

2018

Language:

english

File:

PDF, 1.86 MB

english, 2018

6

Novel and Efficient Synthesis of Cyanidin 3- O -β- d -Glucoside from (+)-Catechin via a Flav-3-en-3-ol as a Key Intermediate

Kondo, Tadao, Oyama, Kin-ichi, Nakamura, Saki, Yamakawa, Daisuke, Tokuno, Kazunari, Yoshida, Kumi

Journal:

Organic Letters

Year:

2006

Language:

english

File:

PDF, 77 KB

english, 2006

7

Total Synthesis of Flavocommelin, a Component of the Blue Supramolecular Pigment from Commelina c ommunis , on the Basis of Direct 6- C -Glycosylation of Flavan

Oyama, Kin-ichi, Kondo, Tadao

Journal:

Journal of Organic Chemistry

Year:

2004

Language:

english

File:

PDF, 177 KB

english, 2004

8

Synthesis of 8-Aryl-O-methylcyanidins and Their Usage for Dye-Sensitized Solar Cell Devices

Kimura, Yuki, Oyama, Kin-ichi, Murata, Yasujiro, Wakamiya, Atsushi, Yoshida, Kumi

Journal:

International Journal of Molecular Sciences

Year:

2017

Language:

english

File:

PDF, 948 KB

english, 2017

9

ChemInform Abstract: Antiinflammatory Activity of N-Naphthoyl D-Alanine in vivo.

Michimasa Goto, Hiromi Kataoka, Yoshie Araya, Masashi Kawasaki, Kin-ichi Oyama, Masanori Semma, Yoshio Ito, Atsushi Ichikawa

Journal:

Year:

2009

File:

PDF, 18 KB

2009

10

ChemInform Abstract: Practical Synthesis of Cyclic Bis(3′-5′)diadenylic Acid (c-di-AMP).

Noritaka Suzuki, Kin-ichi Oyama, Masaki Tsukamoto

Journal:

Year:

2012

File:

PDF, 33 KB

2012

11

Metal Complex Pigment Involved in the Blue Sepal Color Development of Hydrangea

Oyama, Kin-ichi, Yamada, Tomomi, Ito, Daisuke, Kondo, Tadao, Yoshida, Kumi

Journal:

Journal of Agricultural and Food Chemistry

Year:

2015

Language:

english

File:

PDF, 1.34 MB

english, 2015

12

Synthesis of 2-Aroyl-1-methyl-1H-imidazoles Using Aryl Carboxylic Acids

Yoshida, Kumi, Oyama, Kin-ichi, Watanabe, Noriyuki

Journal:

Year:

2017

Language:

english

File:

PDF, 522 KB

english, 2017

13

Author Correction: Structure of two purple pigments, catechinopyranocyanidins A and B from the seed-coat of the small red bean, Vigna angularis

Yoshida, Kumi, Nagai, Nobukazu, Ichikawa, Yoshiki, Goto, Miki, Kazuma, Kohei, Oyama, Kin-ichi, Koga, Kazushi, Hashimoto, Masaru, Iuchi, Satoru, Takaya, Yoshiaki, Kondo, Tadao

Journal:

Scientific Reports

Year:

2019

File:

PDF, 620 KB

2019

14

A Case of Non-Alcoholic Pancreatitis Treated with Steroid Followed-up Using Intraductal Ultrasonography and Endoscopic Retrograde Pancreatography

Shinji OKANIWA, Tsuneo OYAMA, Masato TAKAMATSU, Takeshi HISA, Akihisa TOMORI, Kin-ichi HOTTA, Shigeru YAMADA

Journal:

Digestive Endoscopy

Year:

1999

Language:

english

File:

PDF, 955 KB

english, 1999

15

Synthesis of Oriented Anti-Virus 7-O-Substituted Apigenins

Yoshida, Kumi, Oyama, Kin-ichi, Kondo, Tadao

Journal:

Year:

2008

Language:

english

File:

PDF, 539 KB

english, 2008

16

Unveiling the 6,8-rearrangement in 8-phenyl-5,7-dihydroxyflavylium and 8-methyl-5,7-dihydroxyflavylium through host-guest complexation

Yoshida, Kumi, Basílio, Nuno, Lima, João Carlos, Cruz, Luís, de Freitas, Victor, Pina, Fernando, Ando, Hiroki, Kimura, Yuki, Oyama, Kin-Ichi

Journal:

European Journal of Organic Chemistry

Year:

2017

Language:

english

File:

PDF, 2.50 MB

english, 2017

17

Structure of two purple pigments, catechiopyranocyanidins A and B from the seed-coat of the small red bean, Vigna angularis

Yoshida, Kumi, Nagai, Nobukazu, Ichikawa, Yoshiki, Goto, Miki, Kazuma, Kohei, Oyama, Kin-ichi, Koga, Kazushi, Hashimoto, Masaru, Iuchi, Satoru, Takaya, Yoshiaki, Kondo, Tadao

Journal:

Scientific Reports

Year:

2019

File:

PDF, 4.41 MB

2019

18

ChemInform Abstract: Highly Efficient β-Glucosylation of the Acidic Hydroxyl Groups, Phenol, and Carboxylic Acid, with an Peracetylated Glucosyl Fluoride Using a Combination of BF3×Et2O and DTBMP as a Promoter.

Kin-ichi Oyama, Tadao Kondo

Journal:

Year:

2000

File:

PDF, 36 KB

2000

19

Structure of two purple pigments, catechiopyranocyanidins A and B from the seed-coat of the small red bean, Vigna angularis

Yoshida, Kumi, Nagai, Nobukazu, Ichikawa, Yoshiki, Goto, Miki, Kazuma, Kohei, Oyama, Kin-ichi, Koga, Kazushi, Hashimoto, Masaru, Iuchi, Satoru, Takaya, Yoshiaki, Kondo, Tadao

Journal:

Scientific Reports

Year:

2019

Language:

english

File:

PDF, 4.41 MB

english, 2019

20

A Novel and Convenient Chemoselective Deprotection Method for Both Silyl and Acetyl Groups on Acidic Hydroxyl Groups Such as Phenol and Carboxylic Acid by Using a Nitrogen Organic Base, 1,1,3,3-Tetramethylguanidine

Oyama, Kin-ichi, Kondo, Tadao

Journal:

Organic Letters

Year:

2003

Language:

english

File:

PDF, 85 KB

english, 2003

21

Conversion of flavonol glycoside to anthocyanin: an interpretation of the oxidation–reduction relationship of biosynthetic flavonoid-intermediates

Oyama, Kin-ichi, Kimura, Yuki, Iuchi, Satoru, Koga, Nobuaki, Yoshida, Kumi, Kondo, Tadao

Journal:

Year:

2019

File:

PDF, 499 KB

2019

22

ChemInform Abstract: Efficient and Versatile Synthesis of 5-O-Acylquinic Acids with a Direct Esterification Using a P-Methoxybenzyl Quinate as a Key Intermediate.

Oyama, Kin-ichi, Watanabe, Noriyuki, Yamada, Tomomi, Suzuki, Masako, Sekiguchi, Yukiko, Kondo, Tadao, Yoshida, Kumi

Journal:

Year:

2015

File:

PDF, 21 KB

2015

23

ChemInform Abstract: Recent Progress in the Synthesis of Flavonoids: From Monomers to Supra-Complex Molecules

Kin-ichi Oyama, Kumi Yoshida, Tadao Kondo

Journal:

Year:

2011

File:

PDF, 18 KB

2011

24

Synthesis of 8-aryl-3,5,7,3′,4′-penta-O-methylcyanidins from the corresponding quercetin derivatives by reduction with LiAlH4

Kimura, Yuki, Oyama, Kin-ichi, Kondo, Tadao, Yoshida, Kumi

Journal:

Tetrahedron Letters

Year:

2017

Language:

english

File:

PDF, 725 KB

english, 2017

25

Highly Efficient β-Glucosylation of the Acidic Hydroxyl Groups, Phenol and Carboxylic Acid, with an Peracetylated Glucosyl Fluoride Using a Combination of BF 3 · Et 2 O and DTBMP as a Promoter

Oyama, Kin-ichi, Kondo, Tadao

Journal:

Year:

1999

Language:

english

File:

PDF, 51 KB

english, 1999

26

Change of Petals′ Color and Chemical Components in Oenothera Flowers during Senescence

Teppabut, Yada, Oyama, Kin-ichi, Kondo, Tadao, Yoshida, Kumi

Journal:

Year:

2018

Language:

english

File:

PDF, 1.99 MB

english, 2018

27

Recent Progress in the Synthesis of Flavonoids: From Monomers to Supra-Complex Molecules

Oyama, Kin-ichi, Yoshida, Kumi, Kondo, Tadao

Journal:

Current Organic Chemistry

Year:

2011

Language:

english

File:

PDF, 823 KB

english, 2011

28

Chirale molekulare Erkennung bei der Bildung eines Metalloanthocyans: ein supramolekulares Metallkomplexpigment aus blauen Blumen der Gattung Salvia patens

Tadao Kondo, Kin-ichi Oyama, Kumi Yoshida

Journal:

Angewandte Chemie

Year:

2001

Language:

german

File:

PDF, 188 KB

german, 2001

29

A Novel and Convenient Chemoselective Deprotection Method for Both Silyl and Acetyl Groups on Acidic Hydroxyl Groups such as Phenol and Carboxylic Acid by Using a Nitrogen Organic Base, 1,1,3,3-Tetramethylguanidine.

Kin-ichi Oyama, Tadao Kondo

Journal:

Year:

2003

File:

PDF, 224 KB

2003

30

Practical synthesis of adenosine 3′,5′-cyclic monophosphorodithioate

Fukuhara, Atsuya, Morita, Hiroki, Oyama, Kin-ichi, Tsukamoto, Masaki

Journal:

Tetrahedron Letters

Year:

2014

Language:

english

File:

PDF, 537 KB

english, 2014

31

Practical Synthesis of Cyclic Bis(3′–5′)diadenylic Acid ( c -di-AMP)

Suzuki, Noritaka, Oyama, Kin-ichi, Tsukamoto, Masaki

Journal:

Chemistry Letters

Year:

2011

Language:

english

File:

PDF, 406 KB

english, 2011

32

A solid-supported acidic oxazolium perchlorate as an easy-handling catalyst for the synthesis of modified pyrimidine nucleosides via Vorbrüggen-type N -glycosylation

Basu, Nabamita, Oyama, Kin-ichi, Tsukamoto, Masaki

Journal:

Tetrahedron Letters

Year:

2017

Language:

english

File:

PDF, 360 KB

english, 2017

33

Efficient and versatile synthesis of 5-O-acylquinic acids with a direct esterification using a p-methoxybenzyl quinate as a key intermediate

Oyama, Kin-ichi, Watanabe, Noriyuki, Yamada, Tomomi, Suzuki, Masako, Sekiguchi, Yukiko, Kondo, Tadao, Yoshida, Kumi

Journal:

Year:

2015

Language:

english

File:

PDF, 1.37 MB

english, 2015

34

Efficient Preparation of Various O -Methylquercetins by Selective Demethylation

Kimura, Yuki, Kato, Ryo, Oyama, Kin-ichi, Kondo, Tadao, Yoshida, Kumi

Journal:

Natural Product Communications

Year:

2016

Language:

english

File:

PDF, 358 KB

english, 2016

35

Identification and characterization of flavonoids as sialyltransferase inhibitors

Kazuya I.P.J. Hidari, Kin-ichi Oyama, Go Ito, Miho Nakayama, Makoto Inai, Shiho Goto, Yugo Kanai, Kei-ichi Watanabe, Kumi Yoshida, Takumi Furuta, Toshiyuki Kan, Takashi Suzuki

Journal:

Biochemical and Biophysical Research Communications

Year:

2009

Language:

english

File:

PDF, 204 KB

english, 2009

36

Recent application of acidic 1,3-azolium salts as promoters in the solution-phase synthesis of nucleosides and nucleotides

Tsukamoto, Masaki, Oyama, Kin-ichi

Journal:

Tetrahedron Letters

Year:

2018

Language:

english

File:

PDF, 1.20 MB

english, 2018

37

Synthesis of procyanidins by stepwise- and self-condensation using 3,4-cis-4-acetoxy-3-O-acetyl-4-dehydro-5,7,3′,4′-tetra-O-benzyl-(+)-catechin and (−)-epicatechin as a key building monomer

Kin-ichi Oyama, Miyuki Kuwano, Mie Ito, Kumi Yoshida, Tadao Kondo

Journal:

Tetrahedron Letters

Year:

2008

Language:

english

File:

PDF, 187 KB

english, 2008

38

Synthesis of pelargonidin 3-O-6″-O-acetyl-β-d-glucopyranoside, an acylated anthocyanin, via the corresponding kaempferol glucoside

Kin-ichi Oyama, Satoshi Kawaguchi, Kumi Yoshida, Tadao Kondo

Journal:

Tetrahedron Letters

Year:

2007

Language:

english

File:

PDF, 157 KB

english, 2007

39

5,7,3Ê¹,4Ê¹-Tetrahydroxyflav-2-en-3-ol 3-O-glucoside, a new biosynthetic precursor of cyanidin 3-O-glucoside in the seed coat of black soybean, Glycine max

Yoshida, Kumi, Teppabut, Yada, Sawaguchi, Reo, Nakane, Yuhsuke, Hayashi, Emi, Oyama, Kin-ichi, Nishizaki, Yuzo, Goda, Yukihiro, Kondo, Tadao

Journal:

Scientific Reports

Year:

2020

File:

PDF, 2.53 MB

2020

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