Design, synthesis and evaluation of 5-substituted 1-H-tetrazoles as potent anticonvulsant agents
作者:Ai-Mei Liao、Tiantian Wang、Bangrong Cai、Yi Jin、Seunghoon Cheon、ChangJu Chun、Zengtao Wang
DOI:10.1007/s12272-016-0881-y
日期:2017.4
A series of 5-substituted 1-H-tetrazoles were designed and synthesized as potent anticonvulsantagents. Their preliminary anticonvulsant activities were evaluated using maximal electroshock and subcutaneous pentylenetetrazole (scPTZ) seizure tests. Neurotoxicity was determined using rotarod test. The results indicated that the compound 2j in scPTZ model exhibited the ED50 values of 83.3 mg/kg, superior
The present invention relates to a class of EP2 antagonistazetidines of 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.
Lithiation Substitution of Unprotected Benzyltetrazoles
作者:Jeff Y. F. Wong、Agnieszka Lewandowska、Benjamin R. Trowse、Graeme Barker
DOI:10.1021/acs.orglett.9b02633
日期:2019.9.6
N-alkyl-protecting group, precluding the products from use as carboxylate bioisosteres, the major role of tetrazoles in pharmaceuticals. We herein report a convenient, protecting-group-free lithiation-substitution protocol for benzylic tetrazoles. Metalation with n-BuLi at 0 °C followed by electrophilic trapping gave a range of α-functionalized benzyltetrazoles in up to 91% yield.