Synthesis of Novel Cyclopropyl Carbocyclic Nucleosides from (−)-(<i>Z</i>)-2,3-Methanohomoserine
作者:Joan Rifé、Rosa M. Ortuño
DOI:10.1021/ol990203w
日期:1999.10.1
[GRAPHICS]The new cyclopropyl carbocyclic nucleosides 1 and 2 have been synthesized by following short and efficient routes starting from conveniently protected (-)-(Z)-methanohomoserine derivative 3. Both products 1 and 2 bear a quaternary stereogenic center and have opposite chirality, Moreover, the adenine derivative 2 belongs to a new class of cyclopropyl nucleoside showing an amino alcohol function at C-1 in addition to a methylene spacer between the base and the carbocyclic ring.
Stereoselective Synthesis of Novel Types of Cyclopropyl Carbocyclic Nucleosides Containing Quaternary Stereogenic Centers
作者:Elena Muray、Joan Rifé,、Vicenç Branchadell、Rosa M. Ortuño
DOI:10.1021/jo025599v
日期:2002.6.1
of cyclopropyl carbocyclic nucleosides are described. The target products have been synthesized from suitable cyclopropane precursors obtained, in turn, from olefinic compounds derived from D-glyceraldehyde as a chiral precursor. Selective manipulation of the functional groups has allowed the preparation of enantiopure nucleosides, some of them displaying opposite chirality. All these molecules contain