Synthesis of (+)-<i>cis</i>-<i>N</i>-(4-Isothiocyanatobenzyl)-<i>N</i>-normetazocine, an Isothiocyanate Derivative of <i>N</i>-Benzylnormetazocine as Acylant Agent for the σ<sub>1</sub> Receptor
作者:Giuseppe Ronsisvalle、Orazio Prezzavento、Agostino Marrazzo、Franco Vittorio、Michele Massimino、Giovanna Murari、Santi Spampinato
DOI:10.1021/jm010501a
日期:2002.6.1
(+)-cis-N-(4-Isothiocyanatobenzyl)-N-normetazocine (BNIT) (+)-(4) was designed and synthesized as a derivative of the potent and selective a, receptor ligand (+)-cis-N-benzyl-N-normetazocine for irreversibly blocking a, binding sites. Pretreatment of guinea pig brain membranes with BNIT (0.1, 1, and 5 muM) caused a concentration-dependent loss of binding of the selective a, ligand [H-3]-(+)-pentazocine. Binding experiments with [H-3]-1,3-di(2-tolyl)-guanidine ([H-3]-DTG), a ligand of sigma(1) and sigma(2) receptors, showed that pretreatment with BNIT blocked only the sigma(1) component of [H-3]-DTG binding.
(+)-顺式-N-(4-异硫氰酸苯甲基)-N-去甲吗啡酮(BNIT)((+)-(4)被设计并合成,作为强效且选择性的α受体配体(+)-顺式-N-苄基-N-去甲吗啡酮的衍生物,用于不可逆地阻断α受体结合位点。使用不同浓度(0.1、1 和 5 μM)的BNIT预处理大鼠脑膜,导致了选择性α受体配体[H-3]-(+)-戊唑嗪结合能力的浓度依赖性降低。使用[H-3]-1,3-双(2-甲苯基)-胍([H-3]-DTG,一种σ₁和σ₂受体的配体)进行的结合实验表明,BNIT仅阻断了[H-3]-DTG结合中的σ₁受体部分。