Deprecated: mysql_connect(): The mysql extension is deprecated and will be removed in the future: use mysqli or PDO instead in /www/wwwroot/changyanchem.cn/cydetailproe.php on line 3 isobutyl (2S,2 S)-1,1 -((2S,2 S)-2,2 -(4,4 -(biphenyl-4,4 -diyl)bis(1H-imidazole-4,2-diyl))bis(pyrrolidine-2,1-diyl))bis(3-methyl-1-oxobutane-2,1-diyl)dicarbamate-ShangHai ChangYan Chem & Tech CO.,LTD