Syntheses and Chiroptical Properties of the 13-membered spermidine alkaloids (?)-(S)-celacinnine, (0)-(S)-celabenzine, (?)-(S)-celafurine, and (+)-(S)-viburnine
作者:Paul Kuehne、Armin Guggisberg、Manfred Hesse
DOI:10.1002/hlca.19970800604
日期:1997.9.22
The title alkaloids were prepared from the common chiral precursor (−)-(2S)-2-phenyl-1, 5, 9-triazacy-clotridecan-4-one (4) which we had synthesized earlier. The spectral data for the spermidine macrocycles are in good agreement with the data reported for the isolated samples. Our experimental results indicate that the originally reported [α]D value of −2.6 (c = 0.10, MeOH) for natural (S)-viburnine
标题生物碱是由我们先前合成的常见手性前体(-)-(2 S)-2-苯基-1,5,9-三氮杂-环庚烷-4-酮(4)制备的。亚精胺大环的光谱数据与所报告的分离样品的数据非常吻合。我们的实验结果表明,最初报道的天然(S)-紫丁香碱的[α] D值为-2.6(c = 0.10,MeOH)是错误的,应为+ 17.0(c = 0.92,MeOH)。作为进行的按摩疗法研究的结果,可以凭经验证明所有“塞拉西宁”类型的生物碱都具有(S)-构型。