Returning to the laboratory of Beijing University, Li Donglai began to work on the 'cephalosporin' project.
If he remembered correctly, cephalosporin compounds were first discovered in 1948 by Italian scientist Giuseppe
Brotzu is extracted from Cephalosporium acremonium found in the drainage ditches of Sardinia.
The first generation cephalosporins were produced by North American eli
lilly
and
Developed and produced by pany.
Counting the time, the first-generation cephalosporin was already on the market in North America. In order to avoid patent disputes, Li Donglai could only choose the second-generation cephalosporin as a breakthrough.
Second-generation cephalosporins include cefamandole, cefuroxime, cefotiam, cefaclor, etc.
The functions and effects of the three were not very different, so Li Donglai focused his research on cefaclor. In his memory, the production cost of cefaclor was lower.
When Zhang Qingcui saw Li Donglai return to the laboratory, she started to look through the information and walked in with a cup of hot tea.
"Doctor Li, this is Qingming Longjing, specially approved by the school for us. What are you busy with?"
Li Donglai took a sip of tea and said with a smile: "Have you ever heard of cephalosporins?"
"Cephalosporins... ah, are they the antibiotics that have been praised so highly in magazines recently? The manufacturer seems to be called Wenli Company." Zhang Qingcui raised her eyelids, thought for a while, and replied.
"....It's not a polite company. It's called Eli Lilly and Company. It was established in the last century. As for the praise in the magazine, it's not an exaggeration. As an antibiotic, cephalosporin is not as effective as vancomycin, but it is
It has the fewest side effects among antibiotics. Based on this, cephalosporin may become a commonly used antibiotic among the people in the future." Li Donglai explained slowly.
Zhang Qingcui's eyes suddenly lit up, and then dimmed again: "No matter how good the cephalosporins are, they are not from our family. Even if they are imported from outside, they are expensive and ordinary people cannot afford them."
"If you can't afford it, we can make it!" Li Donglai looked at the aggrieved Zhang Qingcui and said with a smile: "The cephalosporin currently manufactured by Eli Lilly and Company is cephradine, which is a β-lactam antibiotic, including many types.
Cephalosporins, we can completely find another way to select a new type of cephalosporins."
Zhang Qingcui was stunned when she heard this. She never expected that Li Donglai would have such a majestic idea.
You know, cephalosporin is a drug that has just been developed even abroad.
Although she didn't want to admit it, she had to admit that the equipment in the laboratory of Jingcheng University was far inferior to that of foreign countries.
Under such circumstances, Li Donglai actually wanted to develop a new type of cephalosporin.
It was beyond her imagination.
After swallowing several mouthfuls of spit, Zhang Qingcui spoke with difficulty: "Doctor Li, are our steps too big? The old man has taught us that we should run quickly in small steps in order to strive to surpass."
Of course, Li Donglai also knew that proposing the development of second-generation cephalosporins at this time seemed a bit shocking. However, time waits for no one. Once Professor Wang's drug is officially released, if there is no drug for children, the consequences will be disastrous.
Regarding Zhang Qingcui's surprise, Li Donglai could only smile: "Science means making bold assumptions. I will write the project plan into a written document and submit it to the school, and the higher ups will decide whether to study this project."
Zhang Qingcui nodded silently. Although she didn't know why Li Donglai had to study such an advanced project, as long as it was something he wanted to do, Zhang Qingcui would naturally support it silently.
"Then let me help you calculate the project funds and project equipment you need!"
....
After working until midnight, less than a third of the project plan was written. Li Donglai stood up and yawned.
Looking at Zhang Qingcui who was still checking information, he said: "Comrade Qingcui, it's almost nine o'clock now. Let's stop here today. I'm going back, and you should rest early."
Now that Ding Qiunan is about to give birth, Ding's mother comes to take care of her during the day and has to go back to take care of Ding Boren at night. Li Xiaomei is also a child. How can he, the head of the family, not go back and take care of her!
She is the only one in Zhang Qingcui's family, and she lives in the dormitory next to the experimental building at night.
There was still another piece of equipment that she had not found. She raised her head and said with a smile: "Doctor Li, please go back first. Don't let your sister-in-law wait in a hurry. I will leave later."
Security on campus is not a problem these days, so Li Donglai stood up, shook his sore neck twice, and yawned before leaving the laboratory.
Although it was already midnight, there were still security guards on duty at the entrance of the laboratory. When they heard the footsteps, the two security team members woke up instantly. They put their hands on their waists and searched carefully in the darkness with their sharp eyes.
When they saw that the person was coming out of the building, the security team members breathed a sigh of relief and greeted Li Donglai: "Team Leader Li, why are you working so late?"
"You also know that we are engaged in research work. Once we have ideas, we will be busy for a while."
Li Donglai stretched out his hand to take out the cigarette case, but was stunned when he reached halfway, and his brows knitted into a knot.
The security officer saw his appearance and asked in confusion: "Team Leader Li, what's wrong? Is there something wrong?"
Li Donglai took out two cigarettes from the cigarette case and gave them to them. He smiled and said: "It's okay. I forgot the canvas bag in the office. There is nothing urgently needed in it anyway. If I go in to pick it up now, I have to trouble you to go through the security inspection procedures again."
, I’ll just come and pick it up tomorrow.”
"No trouble, if you want to get it, I will register it for you now." The security officer put the cigarette in his mouth and went to get the handheld metal detector as he spoke.
"No, I'd better pick it up at work tomorrow!"
After saying that, he waved to the security officers, Li Donglai yawned, then rode his bicycle and drove out of the school along the dim lights.
In this era, Capital University was far less prosperous than in later generations. When night fell over Capital University, students were either burning the midnight oil in the self-study classrooms or exercising on the playground. There were only a few pedestrians on the road and there was silence.
Of course, as a place where young people live together, you can occasionally see young men and women walking on the road, but the distance between them is eight feet away, making them more strangers than strangers.
Even so, when they heard the sound of an approaching bicycle, the two of them were startled, and then the distance between them involuntarily widened a little further.
This made Li Donglai, who was riding a bicycle, full of guilt.
He could only pedal the bicycle lightly and make as little noise as possible.
Just as he walked to a pavilion, a dark shadow appeared next to him. This startled Li Donglai. He quickly squeezed the brake of the car and stamped his feet on the ground, finally stopping the bicycle.
"Comrade, it's late at night, be careful when you walk!" Li Donglai stared at the black figure with his eyes firmly on the black figure, his hands already inserted into his waist.
Although it was dark and it was difficult to see the identity of the person blocking the road, as long as he dared to act rashly, he would be killed.
Li Donglai is a person who is afraid of death. He still has many unfulfilled goals in this world, and he will never put himself in danger rashly.
Liu Feng was startled when he saw Li Donglai's movements under the dim light.
He was originally going to pretend to be a ghost to scare Li Donglai, but now he couldn't care anymore and hurriedly shone the flashlight on his face: "It's me, Secretary Zhang's secretary, Liu Feng. Team leader Li, let's meet in the secretary's office."
Exceedingly."
"Liu Feng, Secretary Liu? It's midnight, why are you wandering around here if you don't go home to sleep? Are you planning to change your career to become a robber?"
Seeing Liu Feng, although Li Donglai took his hands away from his waist, he did not relax his vigilance at all.
The guy in front of me is suspicious, Captain Liu and the others are investigating him.
In addition, he blocked the road in the middle of the night and carried out a sneak attack, so he must have an agenda.
Liu Feng grabbed the bicycle handlebar with one hand and put his other hand into his jacket pocket. He smiled and said, "That's right. I have something I want to talk to you about."
"Talk about something? It's so cold here, let's go to the guard room in front." Li Donglai stared at Liu Feng.
Liu Feng smiled awkwardly: "You can't let too many people know about this matter. Here's the thing, I..."
"Dr. Li, you are here!"
Just when Liu Feng was about to take out the "anonymous" report letter from his pocket, a crisp cheer suddenly came from the distance.
He turned around and saw Zhang Qingcui running over from a dark distance carrying a canvas bag.
With the dim light, seeing the eagerness on Zhang Qingcui's face, Liu Feng felt a little disgusted.
Although she knew that Li Donglai was married, it was impossible for Zhang Qingcui to marry him.
But Liu Feng always felt that the relationship between the two was unusual.
This is what men call their sixth sense.
Zhang Qingcui handed the canvas bag to Li Donglai and said coquettishly: "Why are you so careless and left the bag in the laboratory?"
"Ha, I was busy and forgot just now, so I asked you to come over. I'm really sorry." Li Donglai put the canvas bag on his body, scratched his head, and smiled awkwardly.
When a girl came from so far away to deliver a bag, he was always embarrassed to tell her that he already knew he had left the bag, but he was just too lazy to go back and get it.
"Yes, we are too busy today..."
"Hey, Liu Feng, why are you here?"
At this time, Zhang Qingcui discovered that standing opposite Li Donglai was Liu Feng, his childhood neighbor who lived in the same compound.
"I, I..." Liu Feng let go of the envelope and took it out of his pocket, trying his best to look as if nothing had happened.
Facing Zhang Qingcui, Liu Feng lost his usual calmness and couldn't find a suitable excuse for a while.
In the end, Li Donglai helped him, pointing at Liu Feng and saying, "Secretary Liu just said that he had something secret to tell me, right, Secretary Liu?"
"Yes Yes Yes..."
Under Zhang Qingcui's confused gaze, Liu Feng could only hesitate and say: "The thing is, our university in Beijing is selecting outstanding teachers, and the Department of Medicine has already submitted you as a candidate. I think about the relationship between the two of us.
Not bad, so I came to give you a message in advance."
"...That's it?" Li Donglai's heart suddenly sank when he heard Liu Feng's excuse.
A secretary, a secretary, blocking roads at night, just to make a good sale?
Absolutely impossible!
Liu Feng also knew that this reason was a bit outrageous, and smiled awkwardly: "I didn't mean to stop you. In fact, I was exercising just now, and I saw you riding a bicycle passing by, so I thought of telling you."
As he spoke, he looked concerned: "Dr. Li, don't underestimate outstanding teachers. This title will be very useful for your future rating. Every year, many professors and lecturers strive for this title. You must take it to heart."
.”
Li Donglai knew that due to Zhang Qingcui's arrival, Liu Feng would not tell the original story anyway today.
He patted Liu Feng on the shoulder: "Thank you, Secretary Liu."
Li Donglai wanted to go back on his bicycle, but saw Zhang Qingcui still standing there, looking at Liu Feng warily.
Since Zhang Qingcui arrived, Liu Feng looked like he was out of his mind.
He already knew from Captain Liu that Liu Feng had been pursuing Zhang Qingcui, so naturally he couldn't leave Zhang Qingcui here.
He patted the back seat of the bicycle and said, "Comrade Zhang Qingcui, it's so late, I'll take you back."
"Okay, okay, I ran so far just now and my legs are sore and numb." Zhang Qingcui didn't refuse, sat down on the back seat of the bicycle, and put her hands around Li Donglai's waist.
"Secretary Liu, we are leaving first, you should go back and rest early!"
Watching the bicycle gradually disappear into the darkness, Liu Feng breathed a sigh of relief, his legs softened, and he almost collapsed on the ground.
It was too dangerous just now, Zhang Qingcui showed up so late, and when Li Donglai got the anonymous letter, he had to be exposed.
It seems this mission is more dangerous than imagined.
Liu Feng wiped the sweat from his forehead and wandered towards the bicycle parked far away.
He made up his mind to suspend the execution of this task when he was not sure.
This chapter is not over yet, please click on the next page to continue reading! At worst, I will be scolded by Butterfly, and it’s not like I haven’t been scolded before.
Returning to his residence in Tongzilou, Liu Feng carefully closed the door and windows, not forgetting to close the curtains on the windows.
Then, he took out the anonymous reporting letter from his pocket.
He rubbed the brown letter paper and fell into deep thought. This letter was handed to her by Butterfly himself.
The content of the letter is: Li Donglai used public affairs for personal gain and arranged for villagers from Qinjiagou to work as workers in the steel rolling mill without authorization, and also allowed the villagers to enjoy the treatment of workers.
The letter was very detailed, describing many details clearly, including the number of people, where they lived, and how much they were paid.
It is conceivable that once this letter is handed over, Li Donglai will not be able to escape the charge of seeking public benefit for personal gain.
When he was introduced, even if he made great contributions, he would still be dealt with by his superiors.
Of course, Liu Feng was not stupid. He knew very well that the reason why Butterfly asked him to hand over the letter to Li Donglai was to threaten Li Donglai. He wanted to drag Li Donglai into trouble.
Just like Butterfly did to Liu Feng back then.
We agreed to be friends, and the man and the woman agreed.
As a result, when he woke up in the morning, Butterfly didn't even wear any clothes, so he shouted that he was going to school to report Liu Feng.
Oh, at that time he was charged with being a hooligan.
Liu Feng, who looked confused, was so frightened that he peed. This kind of crime is very risky.
Then, he became a captive of the butterfly.
Liu Feng didn't find it strange that Butterfly tried to deal with Li Donglai. He was just curious about who wrote the anonymous letter.
To be able to investigate the matter so clearly, the other party must know Li Donglai very well.
The trivial noise outside woke Liu Feng out of his deep thoughts.
He shook his head: "What are you thinking about? The action has to be stopped temporarily, so we should get rid of the letters quickly."
Liu Feng struck a match and lit the letter.
Along with a ball of joyful flame, the letter turned into a curl of smoke.
Liu Feng finally felt relieved.
He has not finished enjoying this world, how could he lose his life so easily!
