trimethylsilyl 3-(3-methoxy-4-trimethylsilyloxyphenyl)-2-trimethylsilyloxypropanoate;trimethylsilyl 3-(3-methoxy-4-trimethylsilyloxy-phenyl)-2-trimethylsilyloxy-propanoate;3-(3-methoxy-4-trimethylsilyloxyphenyl)-2-trimethylsilyloxypropanoic acid trimethylsilyl ester;3-(3-methoxy-4-trimethylsilyloxy-phenyl)-2-trimethylsilyloxy-propionic acid trimethylsilyl ester;Benzenepropanoic acid, 3-methoxy-.alpha.,4-bis[(trimethylsilyl)oxy]-, trimethylsilyl ester;Trimethylsilyl 3-(3-methoxy-4-[(trimethylsilyl)oxy]phenyl)-2-[(trimethylsilyl)oxy]propanoate
trimethylsilyl 3-(3-methoxy-4-trimethylsilyloxyphenyl)-2-trimethylsilyloxypropanoate