Repeated Stille coupling of 3-substituted 3-(tributylstannyl)allyl alcohols 2 on a solid support was used to synthesize a 21 × 21 library of skipped dienes and a 21 × 21 × 21 library of skipped trienes. Starting 3-(tributylstannyl)allyl alcohols were prepared by Pd-catalyzed hydrostannation of substituted prop-2-yn-1-ols, by hydroalumination by LiAlH4 followed with transmetallation to tin using tributyltin methoxide, or by substitution of chlorine in (Z)-6-chloro-3-(tributylstannyl)hex-2-en-1-ol with appropriate nucleophile. Synthesized libraries were tested for the activity to endorphin receptors, but with negative results.
使用固相支持上的3-取代3-(三丁基锡基)烯丙醇2的重复Stille偶联反应,合成了一个21×21的跳跃二烯库和一个21×21×21的跳跃三烯库。起始的3-(三丁基锡基)烯丙醇通过Pd催化的取代丙炔-1-醇的氢化锡化反应制备,或者通过氢铝化反应再经过转金属化到锡使用三丁基锡甲氧基,或者通过适当亲核试剂取代(Z)-6-氯-3-(三丁基锡基)己-2-烯-1-醇中的氯原子而得到。合成的库被测试其对内啡肽受体的活性,但结果为阴性。