Jew, Sang Sup.: search on Z-Library

The world's largest scientific articles store. 70,000,000+ articles for free.

Don't use scam websites

1

Practical hofmann rearrangement

Sang-sup Jew, Hyeung Geun Park, Myoung-hee Kang, Tae-hee Lee, Youn-sang Cho

Journal:

Archives of Pharmacal Research

Year:

1992

Language:

english

File:

PDF, 173 KB

english, 1992

2

Asiaticoside mimetics as wound healing agent

Pil-Jong Shim, Jae-Ho Park, Min-Sun Chang, Min-Jung Lim, Do-Ha Kim, Young Hoon Jung, Sang-Sup Jew, Eun Hee Park, Hee-Doo Kim

Journal:

Bioorganic & Medicinal Chemistry Letters

Year:

1996

Language:

english

File:

PDF, 224 KB

english, 1996

3

Cinchona-based phase-transfer catalysts for asymmetric synthesis

Jew, Sang-sup, Park, Hyeung-geun

Journal:

Chemical Communications

Year:

2009

Language:

english

File:

PDF, 1.63 MB

english, 2009

4

Novel Cinchona-Aminobenzimidazole Bifunctional Organocatalysts

Lei Zhang, Myoung-Mo Lee, Soo-Mi Lee, Jihye Lee, Maosheng Cheng, Byeong-Seon Jeong, Hyeung-geun Park, Sang-sup Jew

Journal:

Advanced Synthesis & Catalysis

Year:

2009

Language:

english

File:

PDF, 183 KB

english, 2009

5

Protective effects of asiaticoside derivatives against beta-amyloid neurotoxicity

Inhee Mook-Jung, Ji-Eun Shin, Sung Hwan Yun, Kyoon Huh, Jae Young Koh, Hyung Keun Park, Sang-Sup Jew, Min Whan Jung

Journal:

Journal of Neuroscience Research

Year:

1999

Language:

english

File:

PDF, 185 KB

english, 1999

6

Highly Enantioselective and Practical Cinchona-Derived Phase-Transfer Catalysts for the Synthesis of α-Amino Acids

Hyeung-geun Park, Byeong-Seon Jeong, Mi-Sook Yoo, Jeong-Hee Lee, Mi-kyoung Park, Yeon-Ju Lee, Mi-Jeong Kim, Sang-sup Jew

Journal:

Angewandte Chemie

Year:

2002

Language:

english

File:

PDF, 78 KB

english, 2002

7

Highly Enantioselective and Practical Cinchona-Derived Phase-Transfer Catalysts for the Synthesis of α-Amino Acids

Hyeung-geun Park, Byeong-Seon Jeong, Mi-Sook Yoo, Jeong-Hee Lee, Mi-kyoung Park, Yeon-Ju Lee, Mi-Jeong Kim, Sang-sup Jew

Journal:

Angewandte Chemie International Edition

Year:

2002

Language:

english

File:

PDF, 79 KB

english, 2002

8

Highly Enantioselective Phase-Transfer Catalytic α-Alkylation of α-tert-Butoxycarbonyllactams: Construction of β-Quaternary Chiral Pyrrolidine and Piperidine Systems

Yohan Park, Young Ju Lee, Suckchang Hong, Mi-hyun Kim, Myungmo Lee, Taek-Soo Kim, Jae Kyun Lee, Sang-sup Jew, Hyeung-geun Park

Journal:

Advanced Synthesis & Catalysis

Year:

2011

Language:

english

File:

PDF, 615 KB

english, 2011

9

Highly Enantioselective Phase-Transfer-Catalytic Alkylation of 2-Phenyl-2-oxazoline-4-carboxylic Acid tert-Butyl Ester for the Asymmetric Synthesis of α-Alkyl Serines

Sang-sup Jew, Yeon-Ju Lee, Jihye Lee, Myoung Joo Kang, Byeong-Seon Jeong, Jeong-Hee Lee, Mi-Sook Yoo, Mi-Jeong Kim, Sea-hoon Choi, Jin-Mo Ku, Hyeung-geun Park

Journal:

Angewandte Chemie

Year:

2004

Language:

english

File:

PDF, 141 KB

english, 2004

10

Highly Enantioselective Epoxidation of 2,4-Diarylenones by Using Dimeric Cinchona Phase-Transfer Catalysts: Enhancement of Enantioselectivity by Surfactants

Sang-sup Jew, Jeong-Hee Lee, Byeong-Seon Jeong, Mi-Sook Yoo, Mi-Jeong Kim, Yeon-Ju Lee, Jihye Lee, Sea-hoon Choi, Kyungjae Lee, Myoung Soo Lah, Hyeung-geun Park

Journal:

Angewandte Chemie

Year:

2005

Language:

english

File:

PDF, 147 KB

english, 2005

11

Highly Enantioselective Phase-Transfer-Catalytic Alkylation of 2-Phenyl-2-oxazoline-4-carboxylic Acid tert-Butyl Ester for the Asymmetric Synthesis of α-Alkyl Serines

Sang-sup Jew, Yeon-Ju Lee, Jihye Lee, Myoung Joo Kang, Byeong-Seon Jeong, Jeong-Hee Lee, Mi-Sook Yoo, Mi-Jeong Kim, Sea-hoon Choi, Jin-Mo Ku, Hyeung-geun Park

Journal:

Angewandte Chemie International Edition

Year:

2004

Language:

english

File:

PDF, 141 KB

english, 2004

12

Highly Enantioselective Epoxidation of 2,4-Diarylenones by Using Dimeric Cinchona Phase-Transfer Catalysts: Enhancement of Enantioselectivity by Surfactants

Sang-sup Jew, Jeong-Hee Lee, Byeong-Seon Jeong, Mi-Sook Yoo, Mi-Jeong Kim, Yeon-Ju Lee, Jihye Lee, Sea-hoon Choi, Kyungjae Lee, Myoung Soo Lah, Hyeung-geun Park

Journal:

Angewandte Chemie International Edition

Year:

2005

Language:

english

File:

PDF, 148 KB

english, 2005

13

ChemInform Abstract: Synthesis and in vitro Cytotoxicity of Hexacyclic Camptothecin Analogues.

Sang-sup Jew, Hee-Jin Kim, Myoung Goo Kim, Eun-Young Roh, Chung Il Hong, Joon-Kyum Kim, Jun-Hee Lee, Heesoon Lee, Hyeung-geun Park

Journal:

Year:

2000

File:

PDF, 33 KB

2000

14

ChemInform Abstract: Structure—Activity Relationship Study of Asiatic Acid Derivatives Against Beta Amyloid (Aβ)-Induced Neurotoxicity.

Sang-sup Jew, Chi-hyoung Yoo, Doo-yeon Lim, Heeman Kim, Inhee Mook-Jung, Min Whan Jung, Heesung Choi, Young-hoon Jung, Heedoo Kim, Hyeung-geun Park

Journal:

Year:

2000

File:

PDF, 32 KB

2000

15

ChemInform Abstract: Design and Syntheses of 2-Oxiranecarboxylate Derivatives (I) and Their Hypoglycemic Activities.

Sang-sup Jew, et al. et al.

Journal:

Year:

2000

File:

PDF, 25 KB

2000

16

ChemInform Abstract: Practical Regioselective Synthetic Method for (E)-Enol Ether.

Hyeung-geun Park, Dong-Hwa Kim, Mi-Sook Yoo, Mi-kyoung Park, Sang-sup Jew

Journal:

Year:

2000

File:

PDF, 30 KB

2000

17

ChemInform Abstract: Enantioselective Synthetic Method for 3-Hydroxyflavanones: An Approach to (2R,3R)-3′,4′-O-Dimethyltaxifolin (VIIIb).

Sang-sup Jew, Hyun-ah Kim, So-young Bae, Jeong-hoon Kim, Hyeung-geun Park

Journal:

Year:

2000

File:

PDF, 32 KB

2000

18

ChemInform Abstract: Practical Synthesis of (S)-7-(2-Isopropylamino)ethylcamptothecin Hydrochloride, Potent Topoisomerase I Inhibitor.

Soon Kil Ahn, Nam Song Choi, Byeong Seon Jeong, Kye Kwang Kim, Duck Jin Journ, Joon Kyum Kim, Sang Joon Lee, Jung Woo Kim, Chung Il Hong, Sang-sup Jew

Journal:

Year:

2001

File:

PDF, 29 KB

2001

19

ChemInform Abstract: Trimeric Cinchona Alkaloid Phase-Transfer Catalyst: α,α′,α′′-Tris[O(9)-allylcinchonidinium]mesitylene Tribromide.

Hyeung-geun Park, Byeong-seon Jeong, Mi-sook Yoo, Mi-kyoung Park, Hoon Huh, Sang-sup Jew

Journal:

Year:

2001

File:

PDF, 32 KB

2001

20

ChemInform Abstract: Synthesis and Application of Dimeric Cinchona Alkaloid Phase-Transfer Catalysts: α,α′-Bis[O(9)-Allylcinchonidinium]-o,m, or p-Xylene Dibromide.

Sang-sup Jew, Byeong-Seon Jeong, Mi-Sook Yoo, Hoon Huh, Hyeung-geun Park

Journal:

Year:

2001

File:

PDF, 33 KB

2001

21

Highly Enantioselective and Practical Cinchona-Derived Phase-Transfer Catalysts for the Synthesis of α-Amino Acids.

Hyeung-geun Park, Byeong-Seon Jeong, Mi-Sook Yoo, Jeong-Hee Lee, Mi-kyoung Park, Yeon-Ju Lee, Mi-Jeong Kim, Sang-sup Jew

Journal:

Year:

2002

File:

PDF, 35 KB

2002

22

An Unusual Electronic Effect of an Aromatic-F in Phase-Transfer Catalysts Derived from Cinchona-Alkaloid.

Sang-sup Jew, Mi-Sook Yoo, Byeong-Seon Jeong, Il Yeong Park, Hyeung-geun Park

Journal:

Year:

2003

File:

PDF, 203 KB

2003

23

Synthesis of 6-Formyl-pyridine-2-carboxylate Derivatives and Their Telomerase Inhibitory Activities.

Sang-sup Jew, et al. et al.

Journal:

Year:

2003

File:

PDF, 9 KB

2003

24

Highly Efficient ortho-Fluoro-dimeric Cinchona-Derived Phase-Transfer Catalysts.

Hyeung-geun Park, Byeong-Seon Jeong, Mi-Sook Yoo, Jeong-Hee Lee, Boon-saeng Park, Myoung Goo Kim, Sang-sup Jew

Journal:

Year:

2003

File:

PDF, 109 KB

2003

25

Highly Enantioselective Synthesis of α-Alkyl-alanines via the Catalytic Phase-Transfer Alkylation of 2-Naphthyl Aldimine tert-Butyl Ester by Using O(9)-Allyl-N(1)-2′,3′,4′-trifluorobenzylhydrocinchonidinium Bromide.

Sang-sup Jew, Byeong-Seon Jeong, Jeong-Hee Lee, Mi-Sook Yoo, Yeon-Ju Lee, Boon-saeng Park, Myoung Kim, Hyeung-geun Park

Journal:

Year:

2003

File:

PDF, 160 KB

2003

26

Highly Enantioselective Phase-Transfer-Catalytic Alkylation of 2-Phenyl-2-oxazoline-4-carboxylic Acid tert-Butyl Ester for the Asymmetric Synthesis of α-Alkyl Serines.

Sang-sup Jew, et al. et al.

Journal:

Year:

2004

File:

PDF, 125 KB

2004

27

An Unusual Base-Dependent α-Alkylation and β-Elimination of tert-Butyl 2-Phenyl-2-oxazoline-4-carboxylate: Practical Synthesis of (.+-.)-α-Alkylserines and tert-Butyl Benzamidoacrylate.

Hyeung-geun Park, Jihye Lee, Myoung Joo Kang, Yeon-Ju Lee, Byeong-Seon Jeong, Jeong-Hee Lee, Mi-Sook Yoo, Mi-Jeong Kim, Sea-hoon Choi, Sang-sup Jew

Journal:

Year:

2004

File:

PDF, 104 KB

2004

28

Highly Enantioselective Epoxidation of 2,4-Diarylenones by Using Dimeric Cinchona Phase-Transfer Catalysts: Enhancement of Enantioselectivity by Surfactants.

Sang-sup Jew, et al. et al.

Journal:

Year:

2005

File:

PDF, 22 KB

2005

29

Evidence of the Electronic Factor for the Highly Enantioselective Catalytic Efficiency of Cinchona-Derived Phase-Transfer Catalysts.

Mi-Sook Yoo, Byeong-Seon Jeong, Jeong-Hee Lee, Hyeung-geun Park, Sang-sup Jew

Journal:

Year:

2005

File:

PDF, 34 KB

2005

30

Highly Enantioselective Synthesis of (R)-α-Alkylserines via Phase-Transfer Catalytic Alkylation of o-Biphenyl-2-oxazoline-4-carboxylic Acid tert-Butyl Ester Using Cinchona-Derived Catalysts.

Yeon-Ju Lee, Jihye Lee, Mi-Jeong Kim, Taek-Soo Kim, Hyeung-geun Park, Sang-sup Jew

Journal:

Year:

2005

File:

PDF, 21 KB

2005

31

Highly Enantioselective Synthesis of (2S)-α-(Hydroxymethyl)-glutamic Acid by the Catalytic Michael Addition of 2-Naphthalen-1-yl-2-oxazoline-4-carboxylic Acid tert-Butyl Ester.

Yeon-Ju Lee, Jihye Lee, Mi-Jeong Kim, Byeong-Seon Jeong, Jeong-Hee Lee, Taek-Soo Kim, Jihoon Lee, Jin-Mo Ku, Sang-sup Jew, Hyeung-geun Park

Journal:

Year:

2005

File:

PDF, 25 KB

2005

32

ChemInform Abstract: The Highly Enantioselective Phase-Transfer Catalytic Mono-Alkylation of Malonamic Esters.

Mi-hyun Kim, Sea-hoon Choi, Yeon-Ju Lee, Jihye Lee, Keepyung Nahm, Byeong-Seon Jeong, Hyeung-geun Park, Sang-sup Jew

Journal:

Year:

2009

File:

PDF, 54 KB

2009

33

ChemInform Abstract: Enantioselective Synthesis of (R)-α-Alkylhomoserines and (R)-α-Alkylhomocysteines via Phase-Transfer Catalytic Alkylation.

Taek-Soo Kim, Yeon-Ju Lee, Kyoungyim Lee, Byeong-Seon Jeong, Hyeung-geun Park, Sang-sup Jew

Journal:

Year:

2009

File:

PDF, 41 KB

2009

34

ChemInform Abstract: Highly Enantioselective Synthesis of (S)-α-Alkyl-α,β-diaminopropionic Acids via Asymmetric Phase-Transfer Catalytic Alkylation of 2-Phenyl-2-imidazoline-4-carboxylic Acid tert-Butyl Esters.

Yohan Park, Sukhoon Kang, Young Ju Lee, Taek-Soo Kim, Byeong-Seon Jeong, Hyeung-geun Park, Sang-sup Jew

Journal:

Year:

2010

File:

PDF, 28 KB

2010

35

ChemInform Abstract: Cinchona-Based Phase-Transfer Catalysts for Asymmetric Synthesis

Sang-sup Jew, Hyeung-geun Park

Journal:

Year:

2010

File:

PDF, 15 KB

2010

36

ChemInform Abstract: Novel Cinchona-Aminobenzimidazole Bifunctional Organocatalysts.

Lei Zhang, Myoung-Mo Lee, Soo-Mi Lee, Jihye Lee, Maosheng Cheng, Byeong-Seon Jeong, Hyeung-geun Park, Sang-sup Jew

Journal:

Year:

2010

File:

PDF, 40 KB

2010

37

ChemInform Abstract: Synthesis of (-)-Paroxetine via Enantioselective Phase-Transfer Catalytic Monoalkylation of Malonamide Ester.

Mi-hyun Kim, Yohan Park, Byeong-Seon Jeong, Hyeung-geun Park, Sang-sup Jew

Journal:

Year:

2010

File:

PDF, 35 KB

2010

38

ChemInform Abstract: Synthesis of (αR,βS)-Epoxyketones by Asymmetric Epoxidation of Chalcones with Cinchona Phase-Transfer Catalysts.

Mi-Sook Yoo, Dong-Guk Kim, Min Woo Ha, Sang-sup Jew, Hyeung-geun Park, Byeong-Seon Jeong

Journal:

Year:

2011

File:

PDF, 40 KB

2011

39

ChemInform Abstract: Cinchona-Derived Ammonium Salt Catalyzed Aza Diels—Alder Reaction of Danishefsky′s Diene with Imines.

Yohan Park, Eunyoung Park, Hyojun Jung, Yeon-Ju Lee, Sang-sup Jew, Hyeung-geun Park

Journal:

Year:

2011

File:

PDF, 38 KB

2011

40

ChemInform Abstract: Highly Enantioselective Synthesis of α,α-Dialkylmalonates by Phase-Transfer Catalytic Desymmetrization.

Suckchang Hong, Jihye Lee, Minsik Kim, Yohan Park, Cheonhyoung Park, Mi-hyun Kim, Sang-sup Jew, Hyeung-geun Park

Journal:

Year:

2011

File:

PDF, 37 KB

2011

41

Solvent Effects in the Enantioselective Catalytic-Phase-Transfer Alkylation of Polymer-Supported Glycine–Imine tert-Butyl Ester: Asymmetric Solid-Phase Synthesis of (R)-α-Amino Acid Derivatives

Mi-Jeong Kim, Sang-sup Jew, Hyeung-geun Park, Byeong-Seon Jeong

Journal:

European Journal of Organic Chemistry

Year:

2007

Language:

english

File:

PDF, 164 KB

english, 2007

42

Practical synthesis of (S)-7-(2-isopropylamino)ethylcamptothecin hydrochloride, potent topoisomerase I inhibitor

Soon Kil Ahn, Nam Song Choi, Byeong Seon Jeong, Kye Kwang Kim, Duck Jin Journ, Joon Kyum Kim, Sang Joon Lee, Jung Woo Kim, Chung Hong II, Sang-Sup Jew

Journal:

Journal of Heterocyclic Chemistry

Year:

2000

File:

PDF, 210 KB

2000

43

New method for Hofmann rearrangement

Sang-sup Jew, Hyeung Geun Park, Hee-Joo Park, Min-soo Park, Youn-sang Cho

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 207 KB

english, 1990

44

Enantioselective synthesis of (R)- and (S)-2-alkyl-1,4-butanediolsvia enantiomerically pure 3-alkyl-5-(menthyloxy)butyrolactones

Namkyu Lee, Young-Woo Kim, Kieyoung Chang, Key H. Kim, Sang-Sup Jew, Dae-Kee Kim

Journal:

Tetrahedron Letters

Year:

1996

Language:

english

File:

PDF, 281 KB

english, 1996

45

Enantioselective synthesis of 20(S)-camptothecin using sharpless catalytic asymmetric dihydroxylation

Sang-sup Jew, Kwang-dae Ok, Hee-jin Kim, Myoung Goo Kim, Jong Min Kim, Jeong Mi Hah, Youn-sang Cho

Journal:

Tetrahedron: Asymmetry

Year:

1995

Language:

english

File:

PDF, 218 KB

english, 1995

46

Synthesis and antitumor activity of 7-substituted 20(RS)-camptothecin analogues

Sang-sup Jew, Hee-Jin Kim, Myoung Goo Kim, Eun-Young Roh, Youn-sang Cho, Joon-Kyum Kim, Kyung-Hoe Cha, Kang-Keun Lee, Hyun-Jung Han, Jae-Young Choi, Heesoon Lee

Journal:

Bioorganic & Medicinal Chemistry Letters

Year:

1996

Language:

english

File:

PDF, 190 KB

english, 1996

47

Synthesis and in vitro cytotoxicity of (RS)-20-desethyl-20-substituted camptothecin analogues

Sang-sup Jew, Myoung Goo Kim, Hee-Jin Kim, Eun-Young Roh, Youn-sang Cho, Joon-Kyum Kim, Kyung-Hoe Cha, Kang-Keun Lee, Hyun-Jung Han, Heesoon Lee

Journal:

Bioorganic & Medicinal Chemistry Letters

Year:

1996

Language:

english

File:

PDF, 209 KB

english, 1996

48

Polymeric chiral phase-transfer catalysts derived from cinchona alkaloids for enantioselective synthesis of α-amino acids

Jeong-Hee Lee, Mi-Sook Yoo, Ji-Hee Jung, Sang-sup Jew, Hyeung-geun Park, Byeong-Seon Jeong

Journal:

Year:

2007

Language:

english

File:

PDF, 605 KB

english, 2007

49

Asymmetric synthesis of α,β-epoxysulfones via phase-transfer catalytic Darzens reaction

Jin-Mo Ku, Mi-Sook Yoo, Hyeung-geun Park, Sang-sup Jew, Byeong-Seon Jeong

Journal:

Year:

2007

Language:

english

File:

PDF, 222 KB

english, 2007

50

Solid-phase synthesis of α-alkylserines via phase-transfer catalytic alkylation of polymer-supported 2-phenyl-2-oxazoline-4-carboxylate

Jihye Lee, Min Woo Ha, Taek-Soo Kim, Mi-Jeong Kim, Jin-Mo Ku, Sang-sup Jew, Hyeung-geun Park, Byeong-Seon Jeong

Journal:

Year:

2009

Language:

english

File:

PDF, 507 KB

english, 2009