- Optical active ethyl 4-cloro-(R)-3-hydroxybutyrate was prepared by stereo selective bioreduction of ethyl 4-chloro-acetoacetate with baker's yeast.
以4 氯乙酰乙酸乙酯为原料,以面包酵母为手性生物催化剂,选择性合成光学活性4 氯 (R) 3 羟基丁酸乙酯。
- This programme is being broadcast in stereo.
- This program is being broadcast in stereo.
- We're being deafened by next door's stereo.
- Who originated the concept of stereo sound?
- Father bought her a stereo radio.