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1

Structure of stichopogenin A4, the genuine aglycone of holotoxin a isolated niom stichopus japonicus selenka

Isao Kitagawa, Tamio Sugawara, Itiro Yosioka, Kaoru Kuriyama

Journal:

Tetrahedron Letters

Year:

1975

Language:

english

File:

PDF, 223 KB

english, 1975

2

[IEEE 2012 International Conference on Renewable Energy Research and Applications (ICRERA) - Nagasaki, Japan (2012.11.11-2012.11.14)] 2012 International Conference on Renewable Energy Research and Applications (ICRERA) - A new pitch control system of wind turbine to damp power system frequency fluctuations

Junqiao, Liu, Rosyadi, Marwan, Takahashi, Rion, Tamura, Junji, Fukushima, Tomoyuki, Sakahara, Atsushi, Shinya, Koji, Yosioka, Kazuki

Year:

2012

Language:

english

File:

PDF, 665 KB

english, 2012

3

Studies on the constituents of Gastrodia elata Blume.

TAGUCHI, HEIHACHIRO, YOSIOKA, ITIRO, YAMASAKI, KAZUO, KIM, ILHYUK

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1981

File:

PDF, 987 KB

1981

4

Untersuchungen über Flechtenstoffe, LXIII. Mitteil.: Über die Bestandteile der Baeomyces-Arten

Yasuhiko Asahina, Yaitiro Tanase, Itiro Yosioka

Journal:

European Journal of Inorganic Chemistry

Year:

1936

Language:

german

File:

PDF, 184 KB

german, 1936

5

Untersuchungen über Flechtenstoffe, LXVII, Mitteil.: Über Stictinsäure (III. Mitteil.)

Yasuhiko Asahina, Masaiti Yanagita, Itiro Yosioka

Journal:

European Journal of Inorganic Chemistry

Year:

1936

Language:

german

File:

PDF, 363 KB

german, 1936

6

Über die Methyl-Abspaltung eines o-Methoxy-benzaldehyd-anils

Yasuhiko Asahina, Itiro Yosioka

Journal:

European Journal of Inorganic Chemistry

Year:

1936

Language:

german

File:

PDF, 204 KB

german, 1936

7

Untersuchungen über Flechtenstoffe, LXXV. Mitteil.: Synthese der Gyrophorsäure (II.), Umbilicarin- und Umbilicarsäure

Yasuhiko Asahina, Itiro Yosioka

Journal:

European Journal of Inorganic Chemistry

Year:

1937

Language:

german

File:

PDF, 485 KB

german, 1937

8

Untersuchungen über Flechtenstoffe, LXXXV. Mitteil.: Über die Synthese der Perlatolin- und Imbricarsäure

Yasuhiko Asahina, Itiro Yosioka

Journal:

European Journal of Inorganic Chemistry

Year:

1937

Language:

german

File:

PDF, 291 KB

german, 1937

9

Untersuchungen über Flechtenstoffe, XCV. Mitteil.: Über die Zeorin-Gruppe (II)

Yasuhiko Asahina, Itiro Yosioka

Journal:

European Journal of Inorganic Chemistry

Year:

1940

Language:

german

File:

PDF, 401 KB

german, 1940

10

No mutations of SAP/SH2D1A/DSHP and perforin genes in patients with Epstein-Barr virus-associated hemophagocytic syndrome in Japan

Xiaoming Ma, Akiko Okamura, Mikio Yosioka, Nobuhisa Ishiguro, Hideaki Kikuta, Kunihiko Kobayashi

Journal:

Journal of Medical Virology

Year:

2001

Language:

english

File:

PDF, 74 KB

english, 2001

11

An experimental prediction of the preparation condition of Nafion-coated catalyst layers for PEFCs

Masahiro Watanabe, Hiroshi Igarashi, Koji Yosioka

Journal:

Electrochimica Acta

Year:

1995

Language:

english

File:

PDF, 591 KB

english, 1995

12

Photochemical transformation leading to eupteleogenin—II: Attempt to introduce terminal methylene moiety and transformation of spergulagenic acid to eupteleogenin

I. Kitagawa, K. Kitazawa, K. Aoyama, M. Asanuma, I. Yosioka

Journal:

Year:

1972

Language:

english

File:

PDF, 606 KB

english, 1972

13

Photochemical transformation leading to eupteleogenin—I: Introduction of epoxy-lactone system

I. Kitagawa, K. Kitazawa, L. Yosioka

Journal:

Year:

1972

Language:

english

File:

PDF, 1.05 MB

english, 1972

14

Soil bacterial hydrolysis leading to genuine aglycone—IX : A steroidal prosapogenol of new type from epigeous part of Metanarthecium luteo-viride maxim. and characterization of 3-epi-metagenin

I. Yosioka, K. Imai, Y. Morii, I. Kitagawa

Journal:

Year:

1974

Language:

english

File:

PDF, 821 KB

english, 1974

15

Soil bacterial hydrolysis leading to genuine aglycone—VIII : Structures of a genuine sapogenol protobassic acid and a prosapogenol of seed kernels of Madhuca longifolia L.

I. Yosioka, A. Inada, I. Kitagawa

Journal:

Year:

1974

Language:

english

File:

PDF, 768 KB

english, 1974

16

On genuine sapogenins of horse chestnut saponins by means of soil bacterial hydrolysis and a new minor sapogenin: 16-Desoxy-barringtogenol C

Itiro Yosioka, Kanako Imai, Isao Kitagawa

Journal:

Tetrahedron Letters

Year:

1967

Language:

english

File:

PDF, 219 KB

english, 1967

17

The structure of jegosapogenin: 21-tigloyl-barringtogenol C

Teruaki Hayashi, Chū-ichi Koshiro, Toshibumi Adachi, Itiro Yosioka, Isao Kitagawa

Journal:

Tetrahedron Letters

Year:

1967

Language:

english

File:

PDF, 235 KB

english, 1967

18

Linaridial, a new cis-clerodane-type diterpene dialdehyde, from linaria japonica miq.

Isao Kitagawa, Minoru Yoshihara, Tadato Tani, Itiro Yosioka

Journal:

Tetrahedron Letters

Year:

1975

Language:

english

File:

PDF, 191 KB

english, 1975

19

Thornasterol A and B, two genuine sapogenols from the starfish acanthaster planci

Isao Kitagawa, Motomasa Kobayashi, Tamio Sugawara, Itiro Yosioka

Journal:

Tetrahedron Letters

Year:

1975

Language:

english

File:

PDF, 216 KB

english, 1975

20

The structure of methyl isoleucotylate, an acid isomerized product of methyl leucotylate

Itiro Yosioka, Masae Yamaki, Tsutomu Nakanishi, Isao Kitagawa

Journal:

Tetrahedron Letters

Year:

1966

Language:

english

File:

PDF, 342 KB

english, 1966

21

Genuine Sapogenins of three Primulaceous Plants

Isao Kitagawa, Akiko Matsuda, Itiro Yosioka

Journal:

Tetrahedron Letters

Year:

1968

Language:

english

File:

PDF, 197 KB

english, 1968

22

Three new chlorine containing bisanthronylz from a lichen, anaptychia obscurata vain

Itiro Yosioka, Hiroshi Yamauchi, Kimiko Morimoto, Isao Kitagawa

Journal:

Tetrahedron Letters

Year:

1968

Language:

english

File:

PDF, 244 KB

english, 1968

23

A new selective cleavage method of glucuronide linkage in oligoglycoside lead tetraacetate oxidation followed by alkali treatment

Isao Kitagaw, Masayuki Yoshikawa, Yuji Ikenishi, Kwang Sik Im, Itiro Yosioka

Journal:

Tetrahedron Letters

Year:

1976

Language:

english

File:

PDF, 220 KB

english, 1976

24

Photooxidation of erythrodiol

Isao Kitagawa, Kiyoshi Kitazawa, Itiro Yosioka

Journal:

Tetrahedron Letters

Year:

1968

Language:

english

File:

PDF, 201 KB

english, 1968

25

The structures of aescigenin and protoaescigenin in relation to theasapogenols A and B (=barringtogenol C): On the configuration of hydroxyl groups in ring E

Itiro Yosioka, Tadashi Nishimura, Akiko Matsuda, Kanako Imai, Isao Kitagawa

Journal:

Tetrahedron Letters

Year:

1967

Language:

english

File:

PDF, 261 KB

english, 1967

26

On the genuine sapogenol of meteogenin, an a-ring aromatized spirostanol from metanarthecium luteo-viride maxim. Structure elucidation by means of soil bacterial hydrolysis

Isao Kitagawa, Tsutomu Nakanishi, Yoshinobu Morii, Itiro Yosioka

Journal:

Tetrahedron Letters

Year:

1976

Language:

english

File:

PDF, 247 KB

english, 1976

27

Conversion of dihydroalantolactone to tetrahydroligularenolide a biogenetic-type transformation of eudesmanolide to eremophilanolide

Isao Kitagawa, Hirotaka Shibuya, Yasushi Yamazoe, Hidekazu Takeno, Itiro Yosioka

Journal:

Tetrahedron Letters

Year:

1974

Language:

english

File:

PDF, 193 KB

english, 1974

28

On the c-16 hydroxyl configuration of protoprimulagenin a andprimulagenin a

Isao Kitagawa, Masayuki Yoshikawa, Itiro Yosioka

Journal:

Tetrahedron Letters

Year:

1974

Language:

english

File:

PDF, 220 KB

english, 1974

29

Structure of spergulagenin a isolated from mollugo spergula l. Possessing a new migrated hopane skeleton

Isao Kitagawa, Hideyo Suzuki, Itiro Yosioka, Toshiyuki Akiyama, J.V. Silverton

Journal:

Tetrahedron Letters

Year:

1974

Language:

english

File:

PDF, 195 KB

english, 1974

30

Theasapogenol B (= barringtogenol C), the second major triterpenic alcohol from the seeds saponin of thea sinensis L.

Itiro Yosioka, Tadashi Nishimura, Akiko Matsuda, Isao Kitagawa

Journal:

Tetrahedron Letters

Year:

1966

Language:

english

File:

PDF, 340 KB

english, 1966

31

A hotel cleavage method of saponin with soil bacteria, intending to the genuine sapogenin: On senega and panax saponins

Itiro Yosioka, Mizue Fujio, Midori Osamura, Isao Kitagawa

Journal:

Tetrahedron Letters

Year:

1966

Language:

english

File:

PDF, 281 KB

english, 1966

32

Photolysis of uronide linkage in saponin

Isao Kitagawa, Masayuki Yoshikawa, Itiro Yosioka

Journal:

Tetrahedron Letters

Year:

1973

Language:

english

File:

PDF, 96 KB

english, 1973

33

Picroside I : A bitter principle of picrorhiza kurrooa

Isao Kitagawa, Katsuhiko Hino, Tadashi Nishimura, Etsuko Mukai, Itiro Yosioka, Hiroyuki Inouye, Takashi Yoshida

Journal:

Tetrahedron Letters

Year:

1969

Language:

english

File:

PDF, 246 KB

english, 1969

34

Diacetylpyxinol, a triterpene alcohol from a lichen: Pyxine endochrysina nyl

Itiro Yosioka, Hiroshi Yamauchi, Isao Kitagawa

Journal:

Tetrahedron Letters

Year:

1969

Language:

english

File:

PDF, 166 KB

english, 1969

35

On catalytic hydrogenation of anhydroleucotylin and methyl anhydroleucotylate

Itiro Yosioka, Tsutomu Nakanishi, Isao Kitagawa

Journal:

Tetrahedron Letters

Year:

1966

Language:

english

File:

PDF, 225 KB

english, 1966

36

On the unexpected identity of theasapogenol D (=camelliagenin A), a minor sapogenol of tea seeds, with dihydropriverogenin A.

Itiro Yosioka, Tadashi Nishimura, Nobuo Watani, Isao Kitagawa

Journal:

Tetrahedron Letters

Year:

1967

Language:

english

File:

PDF, 273 KB

english, 1967

37

Structure of holotoxin A, A major antifungal glycoside of stichopus japonicus selenka

Isao Kitagawa, Tamio Sugawara, Itiro Yosioka

Journal:

Tetrahedron Letters

Year:

1974

Language:

english

File:

PDF, 203 KB

english, 1974

38

Conversion of dihydroalantolactone to eremophilane-type derivatives: A biogenetic-type transformation

Isao Kitagawa, Yasushi Yamazoe, Reiji Takeda, Itiro Yosioka

Journal:

Tetrahedron Letters

Year:

1972

Language:

english

File:

PDF, 225 KB

english, 1972

39

Revised structure of zeorin and its correlation with leucotylin

Itiro Yosioka, Tsutomu Nakanishi, Hiroshi Yamauchi, Isao Kitagawa

Journal:

Tetrahedron Letters

Year:

1971

Language:

english

File:

PDF, 211 KB

english, 1971

40

New steroidal prosapogenins possessing fully acetylated arabinoside linkage at C-11

Itiro Yosioka, Kanako Imai, Isao Kitagawa

Journal:

Tetrahedron Letters

Year:

1971

Language:

english

File:

PDF, 233 KB

english, 1971

41

Transformation of spergulagenic acid, a dicarboxylic triterpenoid, to eupteleogenin, a unique nortriterpenoid

Isao Kitagawa, Kiyoshi Kitazawa, Itiro Yosioka

Journal:

Tetrahedron Letters

Year:

1970

Language:

english

File:

PDF, 199 KB

english, 1970

42

Photoöxidation of oleanolic acid: formation of 11α, 12α-epoxy- and 12α-hydroxy-oleanolic lactones

Isao Kitagawa, Kiyoshi Kitazawa, Itiro Yosioka

Journal:

Tetrahedron Letters

Year:

1968

Language:

english

File:

PDF, 202 KB

english, 1968

43

Two new chlorine containing anthraquinones from a lichen, anaptychia obscurata (nyl.) vain

Itiro Yosioka, Hiroshi Yamauchi, Kimiko Morimoto, Isao Kitagawa

Journal:

Tetrahedron Letters

Year:

1968

Language:

english

File:

PDF, 209 KB

english, 1968

44

On the stereostructures of zeorin and leucotylin

Itiro Yosioka, Tsutomu Nakanishi, Isao Kitagawa

Journal:

Tetrahedron Letters

Year:

1968

Language:

english

File:

PDF, 403 KB

english, 1968

45

The structure of leucotylic acid, a new triterpenic acid from a lichen

Itiro Yosioka, Tsutomu Nakanishi, Emako Tsuda

Journal:

Tetrahedron Letters

Year:

1966

Language:

english

File:

PDF, 271 KB

english, 1966

46

Pyxinic acid, a novel lichen triterpene with 3β-hydroxyl function

Itiro Yosioka, Akiko Matsuda, Issao Kitagawa

Journal:

Tetrahedron Letters

Year:

1966

File:

PDF, 178 KB

1966

47

The 1998 report of the Japanese National Registry data on pediatric end-stage renal disease patients

S. Hattori, Kazuo Yosioka, Masataka Honda, Hiroshi Ito, on behalf of the Japanese Society for Pediatric Nephrology

Journal:

Pediatric Nephrology

Year:

2002

Language:

english

File:

PDF, 60 KB

english, 2002

48

Triterpenoid sapogenins of Schima mertensiana

Isao Kitagawa, Akira Inada, Mari Utsunomiya, Itiro Yosioka

Journal:

Year:

1975

Language:

english

File:

PDF, 103 KB

english, 1975

49

Spergulatriol, a new bisnor-triterpenoid sapogenol from the root of mollugo spergula L.

Isao Kitagawa, Hideaki Yamanaka, Tsutomu Nakanishi, Itiro Yosioka

Journal:

Tetrahedron Letters

Year:

1976

Language:

english

File:

PDF, 222 KB

english, 1976

50

Theasapogenol A, the major sapogenol of the seeds saponin of Thea sinensis L.

Itiro Yosioka, Tadashi Nishimura, Akiko Matsuda, Isao Kitagawa

Journal:

Tetrahedron Letters

Year:

1966

Language:

english

File:

PDF, 307 KB

english, 1966

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