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1

New class of steroidal alkaloids from Fritillaria imperialis

M.Nadeem Akhtar, Atta-ur-Rahman, M.Iqbal Choudhary, Bilge Sener, Ilkay Erdogan, Yoshisuke Tsuda

Journal:

Year:

2003

Language:

english

File:

PDF, 285 KB

english, 2003

2

Acacia concinna Saponins. I. Structures of Prosapogenols, Concinnosides A-F, Isolated from the Alkaline Hydrolysate of the Highly Polar Saponin Fraction.

GAFUR, Mohammod Abdul, OBATA, Tohoru, KIUCHI, Fumiyuki, TSUDA, Yoshisuke

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1997

File:

PDF, 1010 KB

1997

3

New Steroidal Alkaloids from Fritillaria imperialis and Their Cholinesterase Inhibiting Activities.

Rahman-Atta-Ur Rahman-Atta-Ur, Muhammad Nadeem Akhtar, Muhammad Iqbal Choudhary, Yoshisuke Tsuda, Bilge Sener, Assad Khalid, Masood Parvez

Journal:

Year:

2003

File:

PDF, 79 KB

2003

4

New diterpene isopimara-7,15-dien-19-oic acid and its prolyl endopeptidase inhibitory activity

Atta-ur-rahman,, Nadeem Akhtar, Muhammad, Iqbal Choudhary, Muhammad, Tsuda, Yoshisuke, Yasin, Amsha, Sener, Bilge, Parvez, Masood

Journal:

Natural Product Research

Year:

2005

Language:

english

File:

PDF, 238 KB

english, 2005

5

Total Synthesis of (+)-Erysotrine via Asymmetric Diels-Alder Reaction Under Super High Pressure

Tsuda, Yoshisuke, Hosoi, Shinzo, Katagiri, Nobuya, Kaneko, Chikara, Sano, Takehiro

Journal:

Year:

1992

Language:

english

File:

PDF, 139 KB

english, 1992

6

New Steroidal Alkaloids from Fritillaria imperialis and Their Cholinesterase Inhibiting Activities

Atta-ur-Rahman,, Akhtar, Muhammad Nadeem, Choudhary, Muhammad Iqbal, Tsuda, Yoshisuke, Sener, Bilge, Khalid, Assad, Parvez, Masood

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

2002

Language:

english

File:

PDF, 62 KB

english, 2002

7

ChemInform Abstract: Martefragin A, a Novel Indole Alkaloid Isolated from Red Alga, Inhibits Lipid Peroxidation.

Satoshi Takahashi, Takayuki Matsunaga, Chika Hasegawa, Haruo Saito, Daisuke Fujita, Fumiyuki Kiuchi, Yoshisuke Tsuda

Journal:

Year:

1999

File:

PDF, 29 KB

1999

8

ChemInform Abstract: Studies Towards Total Synthesis of Non-Aromatic Erythrinan Alkaloids. Part 7. Synthesis of Cocculolidine Skeleton.

Kunihiko Mohri, Kimiaki Isobe, Manabu Maeda, Taroh Takeda, Ryoko Ohkubo, Yoshisuke Tsuda

Journal:

Year:

1999

File:

PDF, 29 KB

1999

9

ChemInform Abstract: Synthesis of Some Substituted Adamantane-2,4-diones from 4,4-Disubstituted Cyclohexanone Enamines and α,β-Unsaturated Acid Chlorides.

M. Giasuddin Ahmed, Syed M. Iqbal Moeiz, S. Asghari Ahmed, Fumiyuki Kiuchi, Yoshisuke Tsuda, Paul Sampson

Journal:

Year:

1999

File:

PDF, 31 KB

1999

10

ChemInform Abstract: Resolution of Racemic Sb-Chiral Stibindoles Using an Optically Active ortho-Palladated Benzylamine Derivative, via Their Diastereomeric Complexes.

Jyoji Kurita, Fujiko Usuda, Shuji Yasuike, Takashi Tsuchiya, Yoshisuke Tsuda, Fumiyuki Kiuchi, Shinzo Hosoi

Journal:

Year:

2000

File:

PDF, 25 KB

2000

11

ChemInform Abstract: Synthesis and Structure of Novel Dibenzo[b,i]-1-oxa-6-heteroecines Containing Group 15 Heavier Elements.

Shuji Yasuike, Satoshi Tsukada, Jyoji Kurita, Takashi Tsuchiya, Yoshisuke Tsuda, Humiyuki Kiuchi, Shinzo Hosoi

Journal:

Year:

2000

File:

PDF, 30 KB

2000

12

ChemInform Abstract: Synthesis of Erythrina and Related Alkaloids. Part 49. Synthesis of Four Possible Stereoisomers of 1,2-Epoxy-3-hydroxyerythrinans: Total Synthesis of an Alkenoid-Type Erythrinan Alkaloid, (.+-.)-Erythratidine.

Shinzo Hosoi, Motoyoshi Nagao, Yoshisuke Tsuda, Kimiaki Isobe, Takehiro Sano, Tomihisa Ohta

Journal:

Year:

2000

File:

PDF, 35 KB

2000

13

ChemInform Abstract: Utilization of Sugars in Organic Synthesis. Part 34. Thio-Sugars. Part 4. Synthesis of Carbohydrate 1,3-Glycol (Six-Membered) Thionocarbonates and Their Attempted O—S Rearrangement.

Yoshisuke Tsuda, Shinsuke Noguchi, Hideki Niino

Journal:

Year:

2002

File:

PDF, 33 KB

2002

14

New Class of Steroidal Alkaloids from Fritillaria imperialis

M. Nadeem Akhtar, Atta-ur-Rahman Atta-ur-Rahman, M. Iqbal Choudhary, Bilge Sener, Ilkay Erdogan, Yoshisuke Tsuda

Journal:

Year:

2003

File:

PDF, 83 KB

2003

15

Dioxopyrrolines. Part 62. Diels—Alder Reaction of 1-Aryl-4- and 5-Methoxycarbonyl-1H-pyrrole-2,3-diones with Various 1,3-Dienes.

Kunihiko Mohri, Katsumi Yokoyama, Hiroaki Komiya, Yuhya Watanabe, Yuki Yoshida, Kimiaki Isobe, Yoshisuke Tsuda

Journal:

Year:

2003

File:

PDF, 111 KB

2003

16

Synthesis of Glycosylcurcuminoids.

Kunihiko Mohri, Yuhya Watanabe, Yuki Yoshida, Mitsuru Satoh, Kimiaki Isobe, Naoki Sugimoto, Yoshisuke Tsuda

Journal:

Year:

2004

File:

PDF, 118 KB

2004

17

Synthesis of Some Substituted Adamantane-2,4-diones from 4,4-Disubstituted Cyclohexanone Enamines and Methacryloyl Chloride.

M. Giasuddin Ahmed, Syeda Asghari Ahmed, Kawsari Akhter, Syed M. Iqbal Moeiz, Yoshisuke Tsuda, Fumiyuki Kiuchi, M. Mahmun Hossain, F. Holger Forsterling

Journal:

Year:

2005

File:

PDF, 16 KB

2005

18

A facile synthesis of fused spiroketal skeleton: 2,2′-spirobi(4-aryl-7,7-dimethyl-5-oxo-5,6,7,8-tetrahydrochroman)

M. Giasuddin Ahmed, Syeda A. Ahmed, Md. Khabir Uddin, Md. Taifur Rahman, U.K.R. Romman, Mizue Fujio, Yoshisuke Tsuda

Journal:

Tetrahedron Letters

Year:

2005

Language:

english

File:

PDF, 108 KB

english, 2005

19

General path of O-acyl migration in d-glucose derivatives

Yoshisuke Tsuda, Kimihiro Yoshimoto

Journal:

Carbohydrate Research

Year:

1980

Language:

english

File:

PDF, 292 KB

english, 1980

20

3-caren-5-one from Kaempferia galanga

Fumiyuki Kiuchi, Norio Nakamura, Yoshisuke Tsuda

Journal:

Year:

1987

Language:

english

File:

PDF, 213 KB

english, 1987

21

Iso-heptacosane in tulip pollen and iso-pentacosane in lily pollen

Yoshisuke Tsuda, Miyuki Kaneda, Keiko Sato, Mayumi Kokaji

Journal:

Year:

1981

Language:

english

File:

PDF, 165 KB

english, 1981

22

Synthesis of substituted tricyclo[5.3.1.04,9]undecan-2,6-diones

M Giasuddin Ahmed, Syed M Iqbal Moeiz, S Asghari Ahmed, Fumiyuki Kiuchi, Yoshisuke Tsuda

Journal:

Year:

2001

Language:

english

File:

PDF, 174 KB

english, 2001

23

Total synthesis of the homoerythrinan alkaloids, 6βh,7-dihydroschelhammeridine (alkaloid A) and 6βh,7-dihydro-3-epischelhammeridine (alkaloid 1): Revision of the proposed stereochemistry

Yoshisuke Tsuda, Masami Murata

Journal:

Tetrahedron Letters

Year:

1986

Language:

english

File:

PDF, 141 KB

english, 1986

24

A new synthetic method for 1-O-acyl-8-glucopyranoses using tri-o-trifluoroacetyl-1,6-anhydroglucose. Synthesis of tuliposide-A.

Kimihiro Yoshimoto, Miyuki Taru, Yoshisuke Tsuda

Journal:

Tetrahedron Letters

Year:

1983

Language:

english

File:

PDF, 134 KB

english, 1983

25

Establishment of the structure of gymnemagenin by x-ray analysis and the structure of deacylgymnemic acid

Yoshisuke Tsuda, Fumiyuki Kiuchi, Hong-Min Liu

Journal:

Tetrahedron Letters

Year:

1989

Language:

english

File:

PDF, 157 KB

english, 1989

26

Crystal and molecular structure of lycorine-chlorohydrin: Revision of the stereochemistry

Jun Toda, Takehiro Sano, Yoshisuke Tsuda, Miyuki Kaneda, Yoichi Iitaka

Journal:

Tetrahedron Letters

Year:

1980

Language:

english

File:

PDF, 128 KB

english, 1980

27

Dustanin: A new pentacyclic triterpenoid as a fungal metabolite

Yoshisuke Tsuda, Kimiaki Isobe

Journal:

Tetrahedron Letters

Year:

1965

Language:

english

File:

PDF, 269 KB

english, 1965

28

Photocrinamine: a phototransformation product of an Amaryllidaceae alkaloid, crinamine

Yoshisuke Tsuda, Miyuki Kaneda, Shuzo Takagi, Masae Yamaki, Yoichi Iitaka

Journal:

Tetrahedron Letters

Year:

1978

Language:

english

File:

PDF, 115 KB

english, 1978

29

Survey ofEphedraresources in the Northern Areas of Pakistan and their genetic diversity

Nobuko Kakiuchi, Keiko Inoue, Yukimasa Kurita, Keisuke Ohkubo, Yoshisuke Tsuda, Masayuki Mikage

Journal:

Journal of Natural Medicines

Year:

2007

Language:

english

File:

PDF, 245 KB

english, 2007

30

Botanical origin of Indian celery seed (fruit)

Takuro Maruyama, Ahmed Abbaskhan, Muhammad Iqbal Choudhary, Yoshisuke Tsuda, Yukihiro Goda, Michel Farille, Jean-Pierre Reduron

Journal:

Journal of Natural Medicines

Year:

2009

Language:

english

File:

PDF, 194 KB

english, 2009

31

Stereospecific introduction of 3α-methoxy group to the versatile intermediate of 11-oxygenated ethanophenanthridine alkaloids. Total syntheses of (±)-crinamine, (±)-6-hydroxycrinamine, (±)-criwelline, and (±)-macronine.

Kimiaki Isobe, Jun'ichi Taga, Yoshisuke Tsuda

Journal:

Tetrahedron Letters

Year:

1976

Language:

english

File:

PDF, 214 KB

english, 1976

32

Biological Activities of Indian Celery, Seseli diffusum (Roxb. ex Sm.) Sant. & Wagh

Ahmed Abbaskhan, Muhammed Iqbal Choudhary, Mohammed Nabeel Ghayur, Zeba Parween, Farzana Shaheen, Anwar-ul-Hassan Gilani, Takuro Maruyama, Kiran Iqbal, Yoshisuke Tsuda

Journal:

Phytotherapy Research

Year:

2012

Language:

english

File:

PDF, 159 KB

english, 2012

33

Synthesis of the amaryllidaceae alkaloid, lycorine

Tsuda, Yoshisuke, Sano, Takehiro, Taga, Jun'Ichi, Isobe, Kimiaki, Toda, Jun, Irie, Hiroshi, Tanaka, Hirokazu, Takagi, Sh�z�, Yamaki, Masae, Murata, Mayumi

Journal:

Journal of the Chemical Society Chemical Communications

Year:

1975

Language:

english

File:

PDF, 159 KB

english, 1975

34

[The Alkaloids: Chemistry and Pharmacology] Volume 48 || Erythrina and Related Alkaloids

Tsuda, Yoshisuke

Year:

1996

Language:

english

File:

PDF, 3.67 MB

english, 1996

35

Synthesis of Substituted Tricyclo[5.3.1.0 4,9 ]undecan‐2,6‐dione from 4,4‐Disubstituted Cyclohexanone Enamines and Methacryloyl Chloride

Asghari Ahmed, Syeda, Akhter, Kawsari, Tsuda, Yoshisuke, Mahmun Hossain, M., Holger Forsterling, F., Giasuddin Ahmed, M.

Journal:

Synthetic Communications

Year:

2006

Language:

english

File:

PDF, 121 KB

english, 2006

36

Azabiocyclo[3.2.0]heptane-3,4-dione (10): A Thermal Azonia 1,3-Shift of 2-Azabicyclo[3.2.0]hept-2-enes to 2-Azanorborn-2-enes

Sano, Takehiro, Tanaka, Kazuhiko, Horiguchi, Yoshie, Tsuda, Yoshisuke

Journal:

Year:

1985

Language:

english

File:

PDF, 130 KB

english, 1985

37

Application of a new reaction of ?-phenylselenylketones to the synthesis of erysotrine

Tsuda, Yoshisuke, Hosoi, Shinzo, Nakai, Akira, Ohshima, Takeshi, Sakai, Yuki, Kiuchi, Fumiyuki

Journal:

Journal of the Chemical Society Chemical Communications

Year:

1984

Language:

english

File:

PDF, 155 KB

english, 1984

38

Synthesis of Some Substituted Adamantanetriones

Ahmed, Mohammed Giasuddin, Moeiz, Syed M. Iqbal, Ahmed, Syeda Asghari, Hena, Mohammed Abu, Tsuda, Yoshisuke, Sampson, Paul

Journal:

Journal of Chemical Research

Year:

1998

Language:

english

File:

PDF, 88 KB

english, 1998

39

Stereoselective methoxylation at the 11?-position of the erythrinan skeleton: total synthesis of (�)-erythristemine

Isobe, Kimiaki, Mohri, Kunihiko, Takeda, Naoko, Hosoi, Shinto, Tsuda, Yoshisuke

Journal:

Journal of the Chemical Society Perkin Transactions 1

Year:

1989

Language:

english

File:

PDF, 229 KB

english, 1989

40

Resolution of racemic Sb-chiral stibindoles using an optically active ortho-palladated benzylamine derivative, via their diastereomeric complexes

Kurita, Jyoji, Usuda, Fujiko, Yasuike, Shuji, Tsuchiya, Takashi, Tsuda, Yoshisuke, Kiuchi, Fumiyuki, Hosoi, Shinzo

Journal:

Chemical Communications

Year:

2000

Language:

english

File:

PDF, 64 KB

english, 2000

41

Synthesis of Some Substituted Adamantane-2,4-diones from 4,4-Disubstituted Cyclohexanone Enamines and α,β-Unsaturated Acid Chlorides

Ahmed, M. Giasuddin, Moeiz, Syed M. Iqbal, Ahmed, S. Asghari, Kiuchi, Fumiyuki, Tsuda, Yoshisuke, Sampson, Paul

Journal:

Journal of Chemical Research

Year:

1999

Language:

english

File:

PDF, 860 KB

english, 1999

42

Synthesis of four possible stereoisomers of 1,2-epoxy-3-hydroxyerythrinans: total synthesis of an alkenoid-type erythrinan alkaloid, (±)-erythratidine

Hosoi, Shinzo, Nagao, Motoyoshi, Tsuda, Yoshisuke, Isobe, Kimiaki, Sano, Takehiro, Ohta, Tomihisa

Journal:

Journal of the Chemical Society Perkin Transactions 1

Year:

2000

Language:

english

File:

PDF, 346 KB

english, 2000

43

Aspterric acid, a new sesquiterpenoid of the carotane group, a metabolite from Aspergillus terreus IFO-6123. X-Ray crystal and molecular structure of its p-bromobenzoate

Tsuda, Yoshisuke, Kaneda, Miyuki, Tada, Akihiro, Nitta, Keiichi, Yamamoto, Yuzuru, Iitaka, Yoichi

Journal:

Journal of the Chemical Society Chemical Communications

Year:

1978

Language:

english

File:

PDF, 217 KB

english, 1978

44

Synthesis of erythrina and related alkaloids. 17. Total synthesis of dl -coccuvinine and dl -coccolinine

Sano, Takehiro, Toda, Jun, Maehara, Nobuteru, Tsuda, Yoshisuke

Journal:

Canadian Journal of Chemistry

Year:

1987

Language:

english

File:

PDF, 378 KB

english, 1987

45

The Structure of a new Crystalline Cevane Alkaloid: its identity with Persicanidine B and Harepermine

Tsuda, Yoshisuke, Atta-ur-Rahman,, Akhtar, Muhammad Nadeem, Sener, Bilge, Parvez, Masood, Sashida, Yutaka, Mimaki, Yoshihiro, Mizuno, Mizuo

Journal:

Natural Product Research

Year:

2004

Language:

english

File:

PDF, 187 KB

english, 2004

46

Total synthesis of the amaryllidaceae alkaloids, lycorine and zephyranthine

Tsuda, Yoshisuke, Sano, Takehiro, Taga, Jun'ichi, Isobe, Kimiaki, Toda, Jun, Takagi, Shuzo, Yamaki, Masae, Murata, Mayumi, Irie, Hiroshi, Tanaka, Hirokazu

Journal:

Journal of the Chemical Society Perkin Transactions 1

Year:

1979

Language:

english

File:

PDF, 729 KB

english, 1979

47

Sodium Borohydride/Tin(IV) Chloride Dietherate; A Versatile Reagent for the Reduction of Imidic Esters

TSUDA, Yoshisuke, SANO, Takehiro, WATANABE, Hajime

Journal:

Year:

1977

File:

PDF, 243 KB

1977

48

A New Diepoxy- ent -kauranoid, Rugosinin, from Isodon rugosus

Abbaskhan, Ahmed, Choudhary, M. Iqbal, Tsuda, Yoshisuke, Parvez, Masood, Atta-ur-Rahman,, Shaheen, Farzana, Parween, Zeba, Tareen, Rasool Baksh, Zaidi, Mudassir Asrar

Journal:

Year:

2003

Language:

english

File:

PDF, 124 KB

english, 2003

49

Efficient Dealkoxycarbonylation of Some β-Ketoesters by Halides of Group IIa Metals

Tsuda, Yoshisuke, Sakai, Yuki

Journal:

Year:

1981

File:

PDF, 157 KB

1981

50

Efficient Dealkoxycarbonylation of Some β-Ketoesters by Halides of Group IIa Metals

Tsuda, Yoshisuke, Sakai, Yuki

Journal:

Year:

1981

File:

PDF, 157 KB

1981

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