API & Intermediate

Gemcitabine hydrochloride is a synthetic new type of two fluoronucleoside antitumor drug developed by Eli Lilly. It was approved in 1995 in South Africa, Sweden, Holland, Australia and other countries. In 1996, the US Food and Drug Administration approved the first line treatment for non-small cell lung cancer and pancreatic cancer. Gemcitabine hydrochloride, a nucleoside homologue, is a cell cycle specific antitumor drug. It mainly kills cells in S phase (DNA synthesis) and blocks the transition of cell proliferation from G1 to S phase. Gemcitabine is suitable for the treatment of advanced or metastatic pancreatic cancer and locally advanced or metastatic non-small cell lung cancer, advanced and non-small cell lung cancer, pancreatic cancer, bladder cancer, breast cancer and other solid tumors.

Edoxaban is an oral tablet of selective coagulation factor Xa inhibitor for the prevention and treatment of deep venous thrombosis and pulmonary embolism. It is used to reduce the risk of stroke and systemic embolism in patients with non valvular atrial fibrillation (NVAF). At present, it has three specifications: 60mg, 30mg and 15mg.

Tert-butyl 2-[(4R,6R)-6-(cyanomethyl)-2,2-dimethyl-1,3-dioxan-4-yl]acetate is used as an intermediate of atorvastatin. Atorvastatin is a selective competitive HMG CoA reductase inhibitor, which can significantly reduce LDL CH and triglyceride, but does not cause the redistribution of triglyceride, but constantly reduces TG in all lipoprotein components. It is suitable for the patients with primary hypercholesterolemia, heterozygous familial hypercholesterolemia or mixed hyperlipidemia, whose diet control can not effectively reduce the average total cholesterol, low density lipoprotein cholesterol and triglyceride. It is also suitable for patients with heterozygous familial hypercholesterolemia who have diet control at the same time.

Ulinastat acetate is a new oral emergency contraceptive, and the efficacy of emergency contraception will not decline with the delay of medication time. At the same time, it has good safety and tolerance.

Pyruvate is a component of human body, which is mainly involved in the metabolism of sugar and fat in human body, and is also one of the intermediate products of carbohydrate metabolism. Pyruvic acid and its salt are widely used in medicine field, and are used to produce tranquilizers, antioxidants, disease resistant agents, synthetic drugs for hypertension and so on. Pyruvic acid can be used in the synthesis of medicine and amino acids, which can improve the production efficiency, especially in pharmaceutical industry, it can shorten the process and simplify the process. For example, 2-phenyloctenic acid, which is made of this product, is a kind of antipyretic and analgesic and diuretic drug. Using this product as raw material can greatly reduce the production cost. It is also used as the anti tuberculosis drug, calcium isoniazide pyruvate, hormone synthesis, pyreniumapamote as an insecticide, and also as pesticide raw materials. The tryptophan can be produced by biochemical reaction from pyruvic acid, indole and ammonia, and it can also be used to produce MSG and spices.