sodium ethyl mercaptoacetate;ethyl sodiomercaptoacetate;sodium ethyl thioglycolate;NaSCH2CO2Et;sodium salt of ethyl thioglycolate;sodium;2-ethoxy-2-oxoethanethiolate
Novel 11-desoxy-prostaglandin F.sub.2 derivatives of the formula ##STR1## wherein R is selected from the group consisting of hydrogen, alkyl of 1 to 4 carbon atoms, an alkali metal, an equivalent of an alkaline earth metal, magnesium or organic amine base, R.sub.1 and R.sub.2 are individually seleced from the group consisting of hydrogen and methyl and X is selected from the group consisting of ##STR2## and a 5 to 6 membered heterocycle optionally substituted with at least one member of the group consisting of halogen, --CN and alkyl of 1 to 5 carbon atoms and X.sup.1 is a 6 member heterocycle with the wavy lines indicating that the hydroxy may be in either one of the two possible .alpha. and .beta. positions having hypotensive activity and process for their preparation.
[EN] THE 5,6-DIMETHOXY-1, 1-DIOXOBENZO(B)THIOPHENE-2-METHYLOXYCARBONYL (DM-BSMOC) AND RELATED AMINO-PROTECTING GROUPS<br/>[FR] 5,6-DIMÉTHOXY-1, 1-DIOXOBENZO(B)THIOPHÈNE-2-MÉTHYLOXYCARBONYL (DM-BSMOC) ET GROUPES AMINO-PROTECTEURS CORRESPONDANTS
申请人:UNIV MASSACHUSETTS
公开号:WO2015009837A1
公开(公告)日:2015-01-22
Amino acid protecting groups are provided for use in peptide synthesis. Particular compounds disclosed include 5,6-dimethoxy-l,l-dioxobenzo[b]thiophi methyloxycarbonyl (DM-Bsmoc) and related amino-protecting groups.
Cationic Ruthenium-Sulfine Complexes: Synthesis and Dynamic Behaviour
作者:Nikolai Kuhnert、Nicolai Burzlaff、Eberhard Dombrowski、Wolfdieter A. Schenk
DOI:10.1515/znb-2002-0302
日期:2002.3.1
The structure of the latter was determined by X-ray crystallography. The loss of oxygen can be suppressed by performing the acylation-elimination sequence in the presence of poly-(4-vinylpyridine). This provided a selective access to complexes of Z-sulfines, [CpRu(PMe3)2(O=S=CHR)]PF6 (R = Ph, 4-C6H4Cl) and [CpRu(dppm)(O=S=CHR)]PF6 (R = Ph, 4-C6H4Cl, COOEt, Cl). Complexes of the parent sulfine O=S=CH2
5-Acetyl-2-methyl-4-nitro-6-phenyl-3(2<i>H</i>)-pyridazinone: Versatile Precursor to Hetero-Condensed Pyridazinones
作者:V. Dal Piaz、G. Ciciani、M. P. Giovannoni
DOI:10.1055/s-1994-25540
日期:——
The title compound 2 was found to be a very useful intermediate to synthesize five- and six-membered hetero-condensed pyridazinones in high yields under generally mild and simple reaction conditions.
Synthesis of 2′,3′-dideoxy-3′-C-(hydroxymethyl)-4′-thiopentofuranosyl nucleosides as potential antiviral agent
作者:Eiko Ichikawa、Shosuke Yamamura、Kuniki Kato
DOI:10.1016/s0960-894x(99)00142-0
日期:1999.4
-thiofuranose derivative was synthesized from (S,S)-1,4-bis(benzyloxy)-2,3-epoxybutane derived from (+)-diethyl L-tartrate and the enantiomerically pure (E)-5-(2-bromovinyl)-1-[2',3'-dideoxy-3'-C-(hydroxymethyl)-beta-D-4'- thiopentofuranosyl]uracil 4 was obtained via coupling of silylated uracil followed by palladium-mediated coupling of methyl acrylate.