3-[4-[2-(N-Dodecyl-N-methylamino)ethoxy]-2-vinylphenyl]propanoic acid, methyl ester 、 3-[4-[2-(N-dodecyl-N-methylamino)ethoxy]phenyl]propanoic acid,hydrochloride 以afforded the title compound (175 mg, 93%) as a clear oil的产率得到3-[4-[2-(N-Dodecyl-N-methylamino)ethoxy]-2-vinylphenyl]propanoic acid, hydrochloride