(2S)-Bornane-10,2-sultam

white to light yellow crystal powde

(1R)-(+)-2,10-Camphorsultam has been used as a reactant in the synthesis of pyrrolidine acid analogs as potent dual PPARα/γ agonists.

(2S)-Bornane-10,2-sultam is a pharmaceutical intermediate compound that can be used to synthesize sulfonamide drugs.  (2R)-Bornane-10,2-sultam can be used as a chiral auxiliary to perform intramolecular 1,3-dipolar cycloadditions to generate bridged and fused cycloadditions with complete diastereocontrol.  Reduction of fused isoxazolidines can generate 1-azaspiro[4.5]decane, which is a potential intermediate in the asymmetric synthesis of cylindrosin alkaloids^[1].

The (-)-enantiomer is recrystallised from 95% EtOH and dried in a vacuum desiccator. It dissolves in dilute aqueous NaOH and can be precipitated without hydrolysis by acidifying. It forms the N-Na salt in EtOH (by addition of Na to the EtOH solution), and the salt can be methylated with MeI to give the (-)-N-Me lactam with m 80o after recrystallisation from hot H2O and has []D -59.6o (c 5, CHCl3) [Shriner et al. J Am Chem Soc 60 2794 1938]. [Oppolzer et al. Helv Chim Acta 69 1142 1986, Weismiller et al. Org Synth 69 154 1955, Beilstein 27 III/IV 1007.]

[1] MARK C BAGLEY; Wolfgang O. Asymmetric synthesis of 1-azaspiro[4.5]decanes via intramolecular dipolar cycloaddition of nitrones containing the bornane-10,2-sultam chiral auxiliary[J]. Tetrahedron, asymmetry, 2000. DOI:10.1016/S0957-4166(00)00205-6.