Retinoic acid metabolites. 3. Total synthesis of (2E,4E,6E,8E)-3,7-dimethyl-9-[6,6-dimethyl-2-(hydroxymethyl)-1-cyclohexen-1-yl]-2,4,6,8-nonatetraenoic acid
Cycloalka[b]pyridine-3-carbonylguanidine derivatives, process for producing the same, and drugs containing the same
申请人:Toa Eiyo Ltd.
公开号:US06258829B1
公开(公告)日:2001-07-10
This invention relates to a cycloalka[b]pyridine-3-carbonylguanidine derivative represented by the following general formula (1):
and a salt thereof, which can provide a drug having sodium/proton (Na+/H+) exchange transport inhibitory action.
Evolution of a Strategy for the Enantioselective Total Synthesis of (+)-Psiguadial B
作者:Lauren M. Chapman、Jordan C. Beck、Caitlin R. Lacker、Linglin Wu、Sarah E. Reisman
DOI:10.1021/acs.joc.8b00728
日期:2018.6.1
were evaluated that featured the following keysteps: (1) an ortho-quinone methide hetero-Diels–Alder cycloaddition to prepare the chroman framework, (2) a Prins cyclization to form the bridging bicyclo[4.3.1]decane system, and (3) a modified Norrish–Yang cyclization to generate the chroman. Ultimately, the successful strategy employed a ring-closingmetathesis to form the seven-membered ring and an intramolecular
Zur Herstellung ?,?-unges�ttigter, cyclischer Aldehyde
作者:P. Seifert、H. Schinz
DOI:10.1002/hlca.19510340236
日期:——
Alkoholen in Benzollösung azeotrop veräthert und die Ketogruppe hierauf mit LiAlH4 zum Hydroxyl reduziert. Beim Schütteln der Oxyverbindung mit Schwefelsäure wurden direkt die entsprechenden ungesättigten Aldehyde erhalten.
Addition of methoxy(phenylthio)methyllithium to ketones, followed by rearrangement of the adducts, provides a new method for the preparation of α-(phenylthio)aldehydes. The rearrangement is stereospecific.
CYCLOALKA[b]PYRIDINE-3-CARBONYLGUANIDINE DERIVATIVES, PROCESS FOR PRODUCING THE SAME, AND DRUGS CONTAINING THE SAME
申请人:TOA EIYO LTD.
公开号:EP0972767A1
公开(公告)日:2000-01-19
This invention relates to a cycloalka[b]pyridine-3-carbonylguanidine derivative represented by the following general formula (1) :
[wherein R1 is hydrogen atom, a halogen atom, a lower alkyl group, a lower alkoxy group, an amino lower alkyl group, a lower alkoxyalkyl group, an aryl group, a heterocyclic group, an aralkyl group, a phenoxy lower alkyl group or an aralkyloxy lower alkyl group; R2 is hydrogen atom, a halogen atom, a lower alkoxy group or a nitro group; A is a single bond or a vinylene group; B is a vinylene or the like group; D is a single bond, a methylene group or an ethylene group; and E is a vinylene or the like group] and a salt thereof, which can provide a drug having sodium/proton (Na+/H+) exchange transport inhibitory action.