ethyl N-(2,3,6-trimethoxy-9-phenanthrylcarbonyl)-2-piperidinecarboxylate

1-(2,3,6-trimethoxy-[9]phenanthrylmethyl)-piperidine-2-carboxylic acid methyl ester

Potassium; 1-(2,3,6-trimethoxy-phenanthren-9-ylmethyl)-piperidine-2-carboxylate

2,3,6-trimethoxyphenanthrene-9-carboxylic acid

ethyl N-(2,3,6-trimethoxy-9-phenanthrylmethyl)-2-piperidinecarboxylate