Pharmaceutical intermediates are some chemical raw materials or chemical products used in the pharmaceutical synthesis process. At present, China needs more than 2000 kinds of raw materials and intermediates supporting chemical industry every year, with a demand of more than 2.5 million tons. After more than 30 years of development in a resource rich China, the chemical raw materials and intermediates required for pharmaceutical production can be basically matched, and only a small part needs to be imported. The output of antibiotics such as penicillin ranks first in the world, and a large number of them are exported to the international market. With the common development of spice, medicine, pesticide and other industries, cinnamon series products have also been found to have high medicinal value, which can significantly improve immunity, and serve as important raw materials for the synthesis of some medicines. Cinnamon series alcohols and lipid derivatives are raw materials for manufacturing vitamin B6, synthesis of calcium pantothenate and other organic compounds; Methyl cinnamate and imidazole take methyl as the intermediate linker, and the p-bromomethyl cinnamate methyl ester prepared by them is the main raw material for the production of ozagrel; More studies have shown that methyl cinnamate has a positive effect on the inhibition of vitiligo. Cinnamon derivatives, a natural spice derived from homorigin of medicine and food,it plays an important role in medical research.
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