7,7,8,8-tetramethyl-3-methylene-5-phenoxy-1,4,6,9-tetraoxa-5l⁵-phosphaspiro[4.4]nonan-2-one

α-Ethoxyacrylic acid

(E)-4-morpholinopent-3-en-2-one

5-甲基脲嘧啶

(S)-2-羟基丙酸 肌乳酸