O-methylation of estrogens by thermal degradation of their tetramethylammonium salts.
D004958:Estradiol; D004964:Estriol; D004970:Estrone; D004987:Ethers; D006358:Hot Temperature; D008745:Methylation; D000644:Quaternary Ammonium Compounds
D004987:Ethers; D000644:Quaternary Ammonium Compounds; D004970:Estrone; D004958:Estradiol; D004964:Estriol