| 摘要 |
A sweetening agent in the form of a 1,3-diphenyl-propanone-1 derivative of the formula WHEREIN R is hydrogen, hydroxyl, alkoxy or carboxyl-substituted, sulphonyl-substituted, phosphonyl-substituted, dialkylamino-substituted, trialkyl ammonium-substituted alkoxy; R1 is hydrogen or a hydrophylic group but both R and R1 are not both hydrogen; R2 and R3 are hydroxyl or alkoxy. |
