173459-91-1Relevant articles and documents
Stereoselective synthesis of fluorine-containing analogues of anti-bacterial sanfetrinem and LK-157
Mohar, Barbara,Stephan, Michel,Urleb, Uro?
experimental part, p. 4144 - 4149 (2010/07/08)
The synthesis of (1′S,3R,4R)-4-acetoxy-3-(1′-trimethylsilyloxy-2′,2′,2′-trifluoroethyl)-2-azetidinone (10) precursor of modified carbapenems is described relying upon [Ru(C6Me6)(S,S)-(CH2)5NSO2DPEN]-catalyzed asymmetric transfer hydrogenation under dynamic kinetic resolution using HCO2H-Et3N. This fluorine-containing precursor yielded the targeted trinems 1 and 2 via a stereoselective key step condensation with lithium (S)-6-methoxy-cyclohexenolate.
Diastereoselective synthesis of a key intermediate for the preparation of tricyclic β-lactam antibiotics
Matsumoto, Takaji,Murayama, Toshiyuki,Mitsuhashi, Shigeru,Miura, Takashi
, p. 5043 - 5046 (2007/10/03)
Asymmetric synthesis of (S)-5 has been accomplished with an excellent enantiomeric excess by hydrogenation of racemic 5 using ruthenium-BINAP- diamine-KOH system, followed by oxidation. Magnesium enolate of (2S)-2- methoxycyclohexanone [(S)-5] reacts with
The stereoselective synthesis of a key intermediate of the trinem antibiotic Sanfetrinem
Ghiron, Chiara,Piga, Elisabetta,Rossi, Tino,Tamburini, Bruno,Thomas, Russell J.
, p. 3891 - 3894 (2007/10/03)
By modulating the reactivity of the Lewis acid promoter it was possible to obtain, in a single stereoselective condensation step, the methoxyketone 7, an advanced intermediate in the synthesis of Sanfetrinem GV 104326.