- Symmetrical non-chelating poly-N-heterocyclic carbenes
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A facile synthetic protocol, which utilized dehydrative condensation of phthalic anhydride and primary amines, for symmetrical non-chelating poly-N-heterocyclic carbene ligands was established. With the designed bi-functional building block, poly-NHC ligands having various denticities and geometries could be readily achieved by varying the structure of poly-amino compounds. Examination of catalytic activity of a series of poly-NHC-Ni complexes revealed the lack of electronic interference among NHC-metal units. This journal is
- Chen, Ying-Hsuan,Peng, Kai-En,Lee, Gene-Hsiang,Peng, Shie-Ming,Chiu, Ching-Wen
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- Size-expanded analogues of dG and dC: Synthesis and pairing properties in DNA
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(Chemical Equation Presented) We describe the completion of the set of four benzo-fused expanded DNA (xDNA) nucleoside analogues. We previously reported the development of benzo-fused analogues of dA and dT and their inclusion in an exceptionally stable n
- Liu, Haibo,Gao, Jianmin,Kool, Eric T.
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p. 639 - 647
(2007/10/03)
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- Toward a New Genetic System with Expanded Dimensions: Size-Expanded Analogues of Deoxyadenosine and Thymidine
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We describe the design, preparation, and properties of two key building blocks of a size-expanded genetic system. Nucleoside analogues of the natural nucleosides dA and dT are reported in which the fusion of a benzo ring increases their size by ca. 2.4 A.
- Liu, Haibo,Gao, Jianmin,Maynard, Lystranne,Saito, Y. David,Kool, Eric T.
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p. 1102 - 1109
(2007/10/03)
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- GASTIN AND CCK RECEPTOR LIGANDS
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Compounds of formula (Ia), (Ib), or (Ic), wherein A represents a group having two fused rings, or a group of formula (Id), R 1 (m) represents up to 6 substituents, K represents--O--,--S--,--CH 2--,--N(R 2)--or--N(COR 2)--, in which R 2 is H or C 1 to C 3 alkyl, W is a carbonyl, sulfonyl or sulfinyl group, provided that at least one of W and X contains carbonyl, Y and Z are as given in the description, and their pharmaceutically acceptable salts are ligands at CCK and/or gastrin receptors. STR1
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