Zhejiang Hisun Pharmaceutical Co., Ltd.

Dewertokin Technology Group Co., Ltd.

Ningbo University of Technology

Ying Li

Long Li

Taishan Hu

Lei Chen

Bin Wang

Cheng Ye

Wenjian Qian

Chenli Guo

Weihong Xu

Xunwen Xiao

Minjie Hu

Jianghua Fang

Sunli Yan

Haojian Zhang

Panpan Zhang

Hui Huang

Zhengzheng Shi

High branch pole

A folding table stand includes a crossbeam and at least two table legs. Each table leg of the at least two table legs has a folded state and an in-use state for supporting the crossbeam. The each table leg is rotatable relative to the crossbeam so that the each table leg can switch between the in-use state and the folded state. The lower end of the each table leg is connected to a foot for being supported by the ground. The crossbeam is provided with a first accommodating slot. The foot closest to the crossbeam is at least partially accommodated in the first accommodating slot when the at least two table legs are both in a folded state.

Folding table frame and folding table

The present invention relates to a piperazine amide derivative as represented by formula (I) or a pharmaceutically acceptable salt thereof, and a pharmaceutical composition thereof, and use of same as a therapeutic agent, especially as a selective Rearranged During Transfection (RET) kinase inhibitor. Ring a, ring e, X, X, X, X, R, R, R, R, R, R, R, R, R, R, R, R, m and n have the same definitions as those in the specification.

Piperazine amide derivative, preparation method therefor, and use thereof in medicine

The present invention discloses a catalytic hydrogenation method for carbon nine resin, comprising the following steps: 1) adding a Pt—W—Y/γ-AlOcatalyst in the first half of a fixed bed, adding a Pd—Zr—Nd/γ-AlOcatalyst in the second half of the fixed bed, and feeding hydrogen for reduction; and 2) catalytic hydrogenating the pretreated carbon nine resin in the fixed bed. In the present invention, different catalysts capable of reacting under the same catalytic conditions are added in the first and second halves of the fixed bed, and the two different catalysts play different roles, and can be active and complementary to each other under the same conditions. The synergistic effect of the two catalysts plays a good catalytic role. Moreover, the production process is simplified, and the production cost is saved.

Catalytic hydrogenation method for carbon nine resin

Growing community of inventors

Zhejiang, China

Ying Li