Ozonolysis of some 8-alkoxyquinolines, and synthesis of a precursor to the non-sedating antihistamine Claritin
作者:Mathias C. Eichler、David H. Grayson
DOI:10.3998/ark.5550190.p008.843
日期:——
near-ambient conditions. The compou nds can be utilized as intermediates for syntheses of the tricyclic ketone 8-chloro-6,11-dih y ro-5H-benzo[5,6]cyclohepta[1,2b]pyridin11-one, a precursor to the important non-sedating a ntihistamine Claritin.
3-甲酰基-2-甲氧基羰基吡啶和3-甲酰基吡啶-2-羧酸异丙酯均通过在接近环境条件下8-甲氧基或8-异丙氧基喹啉的臭氧分解而在一个步骤中有效地获得。该化合物可用作合成三环酮 8-chloro-6,11-dih y ro-5H-benzo[5,6]cyclohepta[1,2b]pyridin11-one 的中间体,这是重要的非- 镇静抗组胺药 Claritin。
Antihypertensive benzopyran derivatives
申请人:American Home Products Corporation
公开号:US04983612A1
公开(公告)日:1991-01-08
Disclosed herein are novel benzopyrans having pharmacological activity, to a process for preparing them, to pharmaceutical compositions containing them, and to their use in the treatment of hypertension.
Disclosed herein are novel benzopyrans having pharmacological activity, to a process for preparing them, to pharmaceutical compositions containing them, and to their use in the treatment of hypertension.
Bi-functional complexes and methods for making and using such complexes
申请人:Gouliaev Alex Haahr
公开号:US11225655B2
公开(公告)日:2022-01-18
The present invention is directed to a method for the synthesis of a bi-functional complex comprising a molecule part and an identifier oligonucleotide part identifying the molecule part. A part of the synthesis method according to the present invention is preferably conducted in one or more organic solvents when a nascent bi-functional complex comprising an optionally protected tag or oligonucleotide identifier is linked to a solid support, and another part of the synthesis method is preferably conducted under conditions suitable for enzymatic addition of an oligonucleotide tag to a nascent bi-functional complex in solution.