Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Xingfu Wei"'
Publikováno v:
Molecules, Vol 28, Iss 11, p 4279 (2023)
The desymmetrization of N-pyrazolyl maleimides was realized through an asymmetric Michael addition by using pyrazolones under mild conditions, leading to the formation of a tri-N-heterocyclic pyrazole–succinimide–pyrazolone assembly in high yield
Externí odkaz:
https://doaj.org/article/20ead02e4a544426867ea8b79ab84ed8
Publikováno v:
Molecules, Vol 28, Iss 7, p 2927 (2023)
The concurrent construction of 1,3-stereocenters remains a challenge. Herein, we report the development of stereoselective union of a point chiral center with allenyl axial chirality in 1,3-position by Pd-catalyzed asymmetric allenylic alkylation bet
Externí odkaz:
https://doaj.org/article/00072202f850427582fca7551ecebd22
Autor:
Aiya Qin, Gaiqin Pei, Yi Tang, Li Tan, Xingfu Wei, Zhengxia Zhong, Ling Zhou, Changyun Chen, Wei Qin
Publikováno v:
Frontiers in Medicine, Vol 7 (2020)
Background: The efficacy and safety of corticosteroids and immunosuppressive therapy remain controversial for the treatment of immunoglobulin A nephropathy (IgAN). This study aimed to evaluate the effects of corticosteroid and immunosuppressant thera
Externí odkaz:
https://doaj.org/article/e83ba6a88cf24ddc98894b537fa39748
Publikováno v:
Organic & Biomolecular Chemistry; 6/7/2024, Vol. 22 Issue 21, p4254-4263, 10p
Publikováno v:
New Journal of Chemistry. 46:14155-14158
An efficient and convenient catalytic asymmetric [3+2] cycloaddition of 4-amino pyrazolone-based azomethine ylides was developed, which delivers the multi-pharmacophore-containing dispirotriheterocyclic scaffolds with excellent stereoselectivities.
Publikováno v:
Organic Chemistry Frontiers. 9:5197-5204
A stereoselective (3 + 2) annulation process between 4-bromo pyrazolones and benzofuran-derived azadienes was developed. A series of novel pyrazole fused spiroketals were synthesized in the presence of triethylamine.
Publikováno v:
Organic Chemistry Frontiers. 9:3585-3590
An asymmetric [3 + 2] cycloaddition of 4-amino pyrazolone-derived azomethine ylides with α,β-enones has been established for the synthesis of 4-spiropyrazolone derivatives with four contiguous stereocenters.
Publikováno v:
Chemical communications (Cambridge, England). 58(68)
A tertiary amine-catalyzed asymmetric [3+2] spiroannulation reaction of pyrazolone-derived Morita-Baylis-Hillman carbonates with alkynyl ketones was achieved under mild conditions. This protocol offers a facile approach to chiral spiro[cyclopentadien
Autor:
Xingfu Wei, Yonghong Nie, Wenzhi Zhu, Minzhen Wang, Shan Zheng, Xiaofei Zhang, Yana Bai, Feng Kang, Li Zhang, Guoxiu Shi, Qin Shi, Chun Yin
Publikováno v:
International Archives of Occupational and Environmental Health. 94:1783-1795
Diurnal temperature range (DTR) is a meteorological indicator closely associated with global climate change. Thus, we aim to explore the effects of DTR on the outpatient and emergency room (O&ER) admissions for cardiovascular diseases (CVDs), and rel
Autor:
Feng Kang, Xiangyan Meng, Yana Bai, Xingfu Wei, Qin Shi, Yufeng Wang, Yanli Liu, Shan Zheng, Wenzhi Zhu, Yonghong Nie, Minzhen Wang
Publikováno v:
Environmental Science and Pollution Research. 28:45793-45804
Background: Some studies suggested 24-hour temperature change (TC24) was one of the potential risk factors for human health. However, evidence of the short-term effect of TC24 on outpatient and emergency department (O&ED) visits and hospitalizations