Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Yiu-Suk Lee"'
Autor:
Yong Hyun Kim, Kee Young Lee, Won Hun Ham, Yiu Suk Lee, Hyun Ju Park, Chang Young Oh, Jin Hyun Jeong, Yong Ho Shin, Sung Jae Pyun
Publikováno v:
Tetrahedron: Asymmetry. 14:87-93
Our synthesis of (+)-spectaline revealed that the methodology involving diastereoselective palladium(0)-catalyzed oxazoline formation and intramolecular reductive amination by catalytic hydrogenation of an oxazoline is an effective method for the asy
Autor:
Yiu-Suk Lee, Chang-Young Oh, Nam-Tae Woo, Kee-Young Lee, Won-Hun Ham, Young Ho Park, Hyun-Ju Park, Yonghyun Kim, Do-Youn Won
Publikováno v:
Archives of Pharmacal Research. 25:45-48
Stereoselective syntheses of (+/-)-epibatidine analogues 2, which contain the 8-azabicyclo [3.2.1]octane ring system, were achieved by using palladium-catalyzed cross-coupling reaction from 4 and the analgesic activity was tested by Mouse writhing an
Autor:
Young Hoon Jung, Kee-Young Lee, Chang-Young Oh, Yiu-Suk Lee, Hyun-Ju Park, Yonghyun Kim, Won-Hun Ham
Publikováno v:
Archives of Pharmacal Research. 25:49-52
Syntheses of (+/-)-homoepibatidine analogues (2), which contain the 8-azabicyclo [3.2.1]octane ring system, were achieved by using palladium-catalyzed reductive-coupling reaction from 3 and the analgesic activity was tested by Mouse writhing antinoci
Publikováno v:
ChemInform. 41
Publikováno v:
The Journal of Organic Chemistry. 65:8372-8374
Autor:
Yiu-Suk Lee, Jae-Eun Joo, Kee-Young Lee, Yun-Sung Chung, Won-Hun Ham, Dong-Rack Choi, Chang-Young Oh, Yonghyun Kim
Publikováno v:
Archives of pharmacal research. 28(2)
Palladium(II)-catalyzed carboxylation of chiral olefins 6a-d has been examined under various conditions. In the weak basic condition (K2CO3), 7a-d were obtained in good yields. Alternatively, in the strong basic condition, pyrrolidinones 8a-d were ob
Autor:
Yonghyun Kim, Chang-Young Oh, Won-Hun Ham, Myung-Hee Chun, Youn-Jung Yoon, Jae-Eun Joo, Yiu-Suk Lee, Kee-Young Lee
Publikováno v:
Archives of pharmacal research. 27(2)
In this study, a highly diastereoselective synthesis of anti-1,2-aminoalcohol was explored starting from L-amino acids as chiral sources. The higher yield and diastereoselectivity was shown when the aza-Claisen rearrangement was performed with allyli
Autor:
Sung-Jae Pyun, Chang-Young Oh, Hyun-Ju Park, Yong‐Ho Shin, Yonghyun Kim, Won-Hun Ham, Kee-Young Lee, Jin-Hyun Jeong, Yiu-Suk Lee
Publikováno v:
ChemInform. 34
Publikováno v:
ChemInform. 32
Publikováno v:
HETEROCYCLES. 81:293