英文别名Edipasvir intermediate; 5-Azaspiro[2.4]heptane-5,6-dicarboxylic acid, 5-(1,1-dimethylethyl) ester, potassium salt; 5-Azaspiro[2.4]heptane-5,6-dicarboxylic acid, 5-(1,1-dimethylethyl) ester, potassium salt, (6S)- (1:1); Potassium (6S)-5-{[(2-methyl-2-propanyl)oxy]carbonyl}-5-azaspiro[2.4]heptane-6-carboxylate; Potassium (S)-5-(tert-butoxycarbonyl)-5-azaspiro[2.4]heptane-6-carboxylate 
