Zhejiang Medicine Co., Ltd. Xinchang Pharmaceutical Factory

Shaoxing University

Zhejiang Medicine Co., Ltd. Xinchang Pharmaceutica Factory

Xiaoyue Jiang

Weidong Ye

Xuejun Lao

Runpu Shen

Xiaohua Song

Chunlei Wu

Chunlei Lv

Luo Liu

Xinde Xu

Lihua Zhang

Guofeng Wu

Xiaoxia Sun

Gang Chen

The present invention describes a reduction type coenzyme Q10 powder, a composition thereof, and a preparation method thereof. The reduction type coenzyme Q10 powder is obtained by reacting an oxidation type coenzyme Q10 with the presence of a reducing agent, removing an organic solvent and other purities from a reaction solution after the reaction is finished to obtain an oil-soluble reduction type coenzyme Q10 liquid, and then directly performing prill formation with cold wind on an obtained reduction type coenzyme Q10 greasy substance. The obtained reduction type coenzyme Q10 powder has a lower crystallinity, and in a Cu-K[alpha] X-ray diffraction spectrum, has a strong peak at a diffraction angle 2[theta] being 18.9 DEG, and has a very strong absorption peak at a diffraction angle 2[theta] being 22.8 DEG. The reduction type coenzyme Q10 powder obtained in the present invention is in an incompletely crystallized state, has desirable stability and desirable oral bioavailability, and is suitable for use in applications such as dietary supplements, cosmetics or pharmaceuticals.

Reduction type coenzyme Q10 powder, composition thereof, and preparation method thereof

Provided are a linezolid intermediate and the preparation method thereof and a method for synthesizing linezolid. The structure of the intermediate is shown as formula F2, wherein the compound is prepared by a condensation reaction of (S)&#x2014;N-(3-chloro-2-hydroxy-1-propyl) acetamide and the compound shown in formula F4. In the preparation methods of the compound shown in formula F2 and linezolid, the reaction system is mild, side reactions are few and the product yield is high. 

Linezolid intermediate and method for synthesizing linezolid

The present invention relates to an intermediate (12) of lycopene of 2,6,10-trimethyl-1,1-dialkoxyl-3,5,9-undecantriene of formula, (12) and its intermediate of 4-methyl-5,5-dialkoxyl-1-pentenyl-1-phosphonic acid dialkyl ester of formula (10), and their preparation methods. The process route is simple, the starting materials are available easily, the cost is low, and it is valuable in industry.

Intermediate of lycopene and preparation method of intermediate thereof

The present invention relates to 2,6,10-trimethyl-3,5,9-undecatrienyl-1-aldehyde represented by formula (3), and a method for preparing this intermediate. The process route of the present invention is simple, the starting materials are available easily, and the cost is low.

Intermediate of lycopene and preparation method of intermediate

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Xinchang County, China

Xiaoyue Jiang