[EN] AZETIDINES AS EP2 ANTAGONISTS<br/>[FR] AZÉTIDINES
申请人:PFIZER LTD
公开号:WO2009063365A1
公开(公告)日:2009-05-22
The present invention relates to a class of EP2 antagonistazetidinesof general formula (I), wherein the variables and substituents are as defined herein,and especially to EP2 antagonist compounds, to their use in medicine, particularly in the treatment of endometriosis and/or uterine fibroids (leiomyomata)and to intermediates usefulin their synthesis and to compositions containing them.
Rhodium-catalyzed olefination of aryl tetrazoles via direct C–H bond activation
作者:Liang Wang、Wenting Wu、Qun Chen、Mingyang He
DOI:10.1039/c4ob01440e
日期:——
Rh(III)-catalyzed direct olefination reaction via aromatic C–Hbondactivation is described using tetrazole as the directinggroup. This reaction provides a straightforward way for the synthesis of ortho-alkenyl aryl tetrazoles. Various functional groups tolerate the reaction conditions and afford the corresponding products in moderate to excellent yields.
Rhodium-catalyzed hydroarylation of alkynes via tetrazole-directed C–H activation
作者:Bin Chen、Yan Jiang、Jiang Cheng、Jin-Tao Yu
DOI:10.1039/c5ob00064e
日期:——
A rhodium-catalyzed hydroarylation of alkynes with aryl tetrazoles through tetrazole-directed C–H activation was developed.
开发了一种以四氮杂环引导的C-H活化为基础的铑催化的炔烃与芳基四氮杂环的氢化芳基化反应。
Alkylation of 5-substituted NH-tetrazoles by alcohols in the superacid CF3SO3H
作者:Anna D. Lisakova、Dmitry S. Ryabukhin、Rostislav E. Trifonov、Vladimir A. Ostrovskii、Aleksander V. Vasilyev
DOI:10.1016/j.tetlet.2015.11.005
日期:2015.12
Reactions of 5-substituted NH-tetrazoles with alcohols in the superacid CF3SO3H have been studied. Both the structure of the tetrazole and the nature of alcohol were found to dramatically influence the selectivity of the reaction and yields of products. Tetrazoles bearing phenyl, electron-donating aryl, or benzyl groups at the 5-position, have been alkylated using various alcohols (including MeOH and EtOH) in CF3SO3H upon heating at 60 degrees C for 0.3-12 h to afford 2-alkyl-2H-tetrazoles in 30-98% yields. (C) 2015 Elsevier Ltd. All rights reserved.
BUTLER R. N.; GAVIN V. C., J. CHEM. SOC. PERKIN TRANS., 1981, PART 1, NO 2, 390-393