Tetra\{\[4\|carboxymethoxyphenyl\]\}porphyrin copper(Ⅱ), nickel(Ⅱ), zinc(Ⅱ) complex and their dibutyltin(Ⅳ) ester derivatives have been synthesized and characterized. The equilibrium constants of the aggregation o...Tetra\{\[4\|carboxymethoxyphenyl\]\}porphyrin copper(Ⅱ), nickel(Ⅱ), zinc(Ⅱ) complex and their dibutyltin(Ⅳ) ester derivatives have been synthesized and characterized. The equilibrium constants of the aggregation of the metal porphyrin and the equilibrium constant of the π\|π coordination with phenothoroline have been measured by using UV\|Vis titration method. The results show that the equilibrium constants decrease in the order of K \-\{CuP\}> K \-\{NiP\}> K \-\{ZnP\}. The vitro anti\|tumor activities of the dibutyltin(Ⅳ) metal porphyrinate has some relation with the ability of aggregation and coordination with ligand of the metal porphyrin.展开更多
A new glycoside, cervicoside, was isolated from the soft coral Sinularia cervicornis Tix Dur ., collected from the bay of Sanya, Hainan Island. Its chemical structure was determined by spectroscopic methods as hexadec...A new glycoside, cervicoside, was isolated from the soft coral Sinularia cervicornis Tix Dur ., collected from the bay of Sanya, Hainan Island. Its chemical structure was determined by spectroscopic methods as hexadecanyl 1 O β D arabinopyranosyloxy (1→4) [ β D arabinopyranosyloxy(1→4)] β D arabinopyranoside. Cervicoside(1) exhibited cytotoxicity against human SKMG 4, Hep G2 and CNE2 cell in vitro.展开更多
文摘Tetra\{\[4\|carboxymethoxyphenyl\]\}porphyrin copper(Ⅱ), nickel(Ⅱ), zinc(Ⅱ) complex and their dibutyltin(Ⅳ) ester derivatives have been synthesized and characterized. The equilibrium constants of the aggregation of the metal porphyrin and the equilibrium constant of the π\|π coordination with phenothoroline have been measured by using UV\|Vis titration method. The results show that the equilibrium constants decrease in the order of K \-\{CuP\}> K \-\{NiP\}> K \-\{ZnP\}. The vitro anti\|tumor activities of the dibutyltin(Ⅳ) metal porphyrinate has some relation with the ability of aggregation and coordination with ligand of the metal porphyrin.
文摘A new glycoside, cervicoside, was isolated from the soft coral Sinularia cervicornis Tix Dur ., collected from the bay of Sanya, Hainan Island. Its chemical structure was determined by spectroscopic methods as hexadecanyl 1 O β D arabinopyranosyloxy (1→4) [ β D arabinopyranosyloxy(1→4)] β D arabinopyranoside. Cervicoside(1) exhibited cytotoxicity against human SKMG 4, Hep G2 and CNE2 cell in vitro.
