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- Through the reaction of 7-ADCA and Dane Salt, one step crystallization gives Cefalexin with the total yield 89.4% . 7-氨基-3-去乙酰氧基头孢烷酸(7-ADCA)和苯甘氨酸邓钠盐反应;只需要一步结晶即可得头孢氨苄;总收率89.;4%25。
- Result: Through the reaction of 7-ADCA and Dane Salt, one step crystallization gives Cefalexin with the total yield 89.4% . 结果:7-氨基-3-去乙酰氧基头孢烷酸(7-ADCA)和苯甘氨酸邓钠盐反应,只需要一步结晶即可得头孢氨苄,总收率89．4%25。
- Conclusion: The synthesis of Cefalexin by one step crystallization can greatly shorten the craft and lower the production cost. 结论:一步结晶法合成头孢氨苄可以大大缩短工艺过程,降低生产成本。
- Synthesis of Cefalexin by One Step Crystallization 一步结晶法合成头孢氨苄
- He bounced into the room with a springy step. 他以轻快的跑步跳进房间。
- Keywords refrigerate crystallization step crystallization temperature control; 重芳烃;精馏;冷冻结晶;分步结晶;温度控制;
- This set of crystal wine cups is very expensive. 这套水晶玻璃酒杯非常昂贵。
- I hope my ideas are in step with public opinion. 我希望我的想法跟公众舆论是一致的。
- She runs up the stairs with a light graceful step. 她以轻快优雅的步子奔上楼去。
- I lost my crystal necklace at the party. 我在晚会上丢失了水晶项链。
- She made her meaning crystal clear. 她把她的意思解释得清清楚楚。
- I hope you try to get them to step up production. 希望你们尽力使厂家增加生产。
- Step on it or we'll miss the beginning of the show. 赶快，要不然我们会赶不上演出的。
- In batch or remote batch entry, a job or job step. 在批处理或远程批处理输入中的一个作业或作业步。
- He drank from a crystal wine glass. 他用水晶酒杯喝酒。
- The house stood by a crystal stream. 那所房子坐落在清澈的小溪旁边。
- You must watch your step so as not to fall down. 你必须留心脚下才不会跌下去。
- Step into the house while you're waiting. 你既然在等候，那就请进屋去吧。
- Step on it, the plane leaves in half an hour. 赶快，飞机再等半小时就要起飞。
- Comrade, please step aside. You're holding us up. 同志，请站开点。你挡住我们了。
