Highly Enantioselective Extraction of Underivatized Amino Acids by the Uryl-Pendant Hydroxyphenyl-Binol Ketone
作者:Haofei Huang、Qian Chen、Misun Choi、Raju Nandhakumar、Zhishan Su、Sihyun Ham、Kwan Mook Kim
DOI:10.1002/chem.201304454
日期:2014.3.3
extractant. Calculations for the energy‐minimized structures for the imine diastereomers and the comparison of the selectivities with other phenyl ketones, (S)‐4 and (S)‐5, demonstrate that the hydrogen bond between the carboxylategroup and the phenolic hydroxyl groupcontributes to the remarkable enantioselectivities. The multiple hydrogenbonds present in the imine of (S)‐3 reinforce the rigidity
Stereoconversion of Amino Acids and Peptides in Uryl-Pendant Binol Schiff Bases
作者:Hyunjung Park、Raju Nandhakumar、Jooyeon Hong、Sihyun Ham、Jik Chin、Kwan Mook Kim
DOI:10.1002/chem.200801036
日期:2008.11.10
result. Deuterium exchange of the alpha proton of alanine in the imine form was studied by (1)H NMR spectroscopy and the results support a stepwise mechanism in the L-into-D conversion rather than a concerted one; that is, deprotonation and protonation take place in a sequential manner. The deprotonation rate of L-Ala is approximately 16 times faster than that of D-Ala. The protonation step, however,
Binaphthol derivatives and their use in optical resolution or optical transformation
申请人:Kim Mook Kwan
公开号:US20060173211A1
公开(公告)日:2006-08-03
Disclosed herein are novel binaphthol derivatives and methods for the optical resolution of amino acids or amino alcohols and for the optical transformation of D, L-forms of amino acids using the same.
Synthesis of Novel H<sub>8</sub>-Binaphthol-based Chiral Receptors and Their Applications in Enantioselective Recognition of 1,2-Amino alcohols and Chirality Conversion of L-Amino acids to D-Amino acids
作者:Hye-In Jung、Raju Nandhakumar、Hoe-Jin Yoon、Sang-Gi Lee、Kwan-Mook Kim
DOI:10.5012/bkcs.2010.31.5.1289
日期:2010.5.20
In most of these studies, molecular recognition is based on non-covalent interac-tions such as hydrogen bonding, metal coordination, and hydro-phobic interactions. In contrast, reversible covalent bond, more specifically imine formation has been rarely explored for the recognition studies. When compared to non-covalent interac-tions, imine bonds
신규한 벤조옥사졸 또는 벤조티아졸 화합물, 이의 제조방법 및 이를 유효성분으로 함유하는 암의 예방 또는 치료용 약학적 조성물
申请人:Sookmyung Women's university industry-academic cooperation foundation 숙명여자대학교산학협력단(220050092977) BRN ▼106-82-12227
公开号:KR101838615B1
公开(公告)日:2018-03-15
본 발명은 벤조옥사졸 또는 벤조티아졸 화합물, 이의 제조방법 및 이를 유효성분으로 함유하는 암의 예방 또는 치료용 약학적 조성물에 관한 것으로, 본 발명에 따른 신규한 구조의 벤조옥사졸 또는 벤조티아졸 화합물은 낮은 농도에서도 현저히 우수한 오로라 B 키나아제 억제활성을 나타내므로, 이를 암의 예방 또는 치료용 약학적 조성물로서 사용할 수 있는 효과가 있다.