Synthesis of Oxazolidinones by a Solid-Phase/Activation Cycloelimination (SP/ACE) Methodology
摘要:
A versatile method for the solid-phase synthesis of oxazolidinones is described, An appropriate 1,2-diol is attached to immobilized sulfonyl chloride, resulting in the selective activation of one of the alcohol functions, The subsequent reaction of the other alcohol group with an isocyanate, followed by a base-promoted cycloelimination gives an oxazolidinone, By proper choice of isocyanates, functionalities can be introduced which are essential for antibiotic activity.
Solid-phase synthesis of 3,5-disubstituted 1,3-oxazolidin-2-ones by an activation/cyclo-elimination process
作者:Peter ten Holte、Lambertus Thijs、Binne Zwanenburg
DOI:10.1016/s0040-4039(98)01608-6
日期:1998.10
Polymer-supported sulfonyl chloride is used in the solid-phase synthesis of disubstituted 1,3-oxazolidin-2-ones. The target compounds were prepared by attaching 1,2-diols to the solid support, followed by reaction with p-toluenesulfonyl isocyanate and subsequent cycle-elimination with concurrent detachment from the resin. Oxazolidinones of high enantiopurity can be prepared with this method by employing enantiopure 1,2-diols. (C) 1998 Elsevier Science Ltd. All rights reserved.