Synthesis of Pyrrolo[2,3-d][1,2,3]thiadiazole-6-carboxylates via the Hurd-Mori Reaction. Investigating the Effect of the N-Protecting Group on the Cyclization
Synthesis of Pyrrolo[2,3-d][1,2,3]thiadiazole-6-carboxylates via the Hurd-Mori Reaction. Investigating the Effect of the N-Protecting Group on the Cyclization
Synthese von (±)-(E)-2-(1-thia-4-äthoxycarbonylbutyl)-4-(3-hydroxy-1-octenyl)-Δ1-pyrrolin und seiner analogen
作者:W Bartmann、G Beck、J Knolle、R.H Rupp
DOI:10.1016/s0040-4039(00)87501-2
日期:1982.1
Starting from 4-methoxycarbonylpyrrolidin-2-one (1) the racemic thiolactim ethers (7a-h) can be obtained via S-alkylation of the thiolactam alcohol (3), subsequent oxidation, Horner-Emmons-Wittig reaction and reduction of the enones.
.DELTA..sup.1 -Pyrroline thiolactim ethers and a process for their
申请人:Hoechst Aktiengesellschaft
公开号:US04548936A1
公开(公告)日:1985-10-22
The present invention relates to .DELTA..sup.1 -pyrroline thiolactim ethers of the general formula I ##STR1## which have a more specific action and/or a longer-lasting action than PGI.sub.2, and to a process for their preparation. The compounds are distinguished by a platelet aggregation-inhibiting action and a blood vessel-relaxing and hypotensive action, and can therefore be used as medicaments.
Investigation of the regioselectivity of the Hurd–Mori reaction for the formation of bicyclic 1,2,3-thiadiazoles
作者:Martin Turner、Thomas Linder、Michael Schnürch、Marko D. Mihovilovic、Peter Stanetty
DOI:10.1016/j.tet.2010.05.017
日期:2010.7
A series of new pyrrolo[d][1,2,3]thiadiazole carboxylates and 5,6-dihydro-4H-cyclopenta[d][1,2,3]thiadiazoles has been synthesized via the Hurd-Mori reaction. The regioselectivity of the cyclization has been studied and trends were established to predict the cyclization direction to afford bicyclic 1,2,3-thiadiazoles. Effects promoting and disfavoring the reaction have also been investigated to guide the synthesis of scaffolds of this type. (C) 2010 Elsevier Ltd. All rights reserved.
Nouveaux composés aminopyrroline, leur procédé de préparation et les compositions pharmaceutiques qui les contiennent