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Next, a total of 104 synthetic Stemona analogues were selected for screening as described above [Fig. 3; for the complete binding data (numeric ¦Êi values) and compound identity, see Dataset S1]. The entries in Fig. 3 are grouped according to compound class as indicated in Scheme 2. Several patterns become discernable when analyzed from this perspective. The reductive amination compounds, derived primarily from aryl-containing amines, tended to possess hit profiles against the GPCR panel of greater potency and lower selectivity than most other compound classes. Similar trends of potency and selectivity were observed for the indole compound set. The Friedländer quinoline analogues displayed a more balanced activity/selectivity profile, whereas the carbamate analogue compound set, which lacks any basic nitrogen, demonstrated more modest binding activity. The results obtained for the twelve representative analogues displayed in Fig. 4 demonstrate these trends. Although compounds possessing submicromolar affinities for multiple classes of GPCR targets (e.g., adrenergic, muscarinic, serotonin, dopaminergic and Sig-R classes) emerged as possible hits for further investigation, we were most interested in a clustering of basic, nitrogencontaining compounds displaying potent affinity for the Sig-Rs (compounds 6{1¨C3, 8, and 9}). Of secondary interest was the adrenergic binding of the tertiary amines derived from the amide reduction of the core scaffolds. Thus, 6{10} possessed analpha1D Ki of 18 nM with no additional binding of <10;000 nM,and 6{11} possessed an alpha1D Ki of 208 nM and a sigma2 Ki of 5,970 nM. |
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ÑÌÔÆÌýÓê(½ð±Ò+35, ·ÒëEPI+1): лл 2011-06-09 23:25:01
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Next, a total of 104 synthetic Stemona analogues were selected for screening as described above [Fig. 3; for the complete binding data (numeric ¦Êi values) and compound identity, see Dataset S1]. ½Ó×Å£¬¹²ÓÐ104Öֺϳɵİٲ¿ÀàËÆÎï¿É¹©ÈçÉÏËùÊöµÄɸѡ¡¾Í¼3£»ÕâÑù×öÒ²ÊÇΪÁËÍê³É°ó¶¨Êý¾Ý£¨ÊýÖµkiÖµ£©¼°»¯ºÏÎïµÄÖÖÀà¼ø¶¨£¬¼ûS1Êý¾Ý¼¯¡¿ The entries in Fig. 3 are grouped according to compound class as indicated in Scheme 2. ͼ3ÖеÄÌõÄ¿ÊÇÒÀ¾Ý±í2ÖÐÏÔʾµÄ»¯ºÏÎïÀàÀ´·Ö×éµÄ¡£ Several patterns become discernable when analyzed from this perspective. ´ÓÒÔÉÏÕâ¸ö½Ç¶È·ÖÎö¿ÉÖª£¬Õ⼸ÖÖģʽÊÇÓм£¿ÉѰµÄ¡£ The reductive amination compounds, derived primarily from aryl-containing amines, tended to possess hit profiles against the GPCR panel of greater potency and lower selectivity than most other compound classes. Ö÷ÒªÊÇ´Ó·¼»·°·À໯ºÏÎïÖÐÑÜÉúµÄ°·À໯ºÏÎïµÄ»¹Ô£¬ÍùÍù¾ßÓÐÒÀ¿¿Óиü´óЧÄܵÄGµ°°×żÁªÊÜÌåµÄ¸Å¿ö£¬ÒÔ¼°±È´ó¶àÊýÆäËû»¯ºÏÎïÀà¸üµÍµÄÑ¡ÔñÐÔ¡£ Similar trends of potency and selectivity were observed for the indole compound set. ÀàËÆµÄЧÄܺÍÑ¡ÔñÐÔÇ÷ÊÆÔÚßÅßáÀ໯ºÏÎïÖÐÒ²Äܹ»¹Û²ìµ½¡£ The Friedländer quinoline analogues displayed a more balanced activity/ selectivity profile, whereas the carbamate analogue compound set, which lacks any basic nitrogen, demonstrated more modest binding activity. FriedläÖ¸³ö£¬àßøÀàËÆÎï±íÏÖ³ö¸ü¼ÓƽºâµÄ»îÐÔ/Ñ¡ÔñÐÔ£¬¶ø°±»ù¼×Ëáõ¥À໯ºÏÎÒòΪȱ·¦»ùµª£¬¶ø±íÏÖ³ö¸ü¼Óκ͵ĽáºÏ»îÐÔ¡£ The results obtained for the twelve representative analogues displayed in Fig. 4 demonstrate these trends. ͼ4ÖеÄ12¸ö´ú±íÐÔµÄÀàËÆÎïµÄ½á¹ûÏÔʾÁËÕâÖÖÇ÷ÊÆ¡£ Although compounds possessing submicromolar affinities for multiple classes of GPCR targets (e.g., adrenergic, muscarinic, serotonin, dopaminergic and Sig-R classes) emerged as possible hits for further investigation, we were most interested in a clustering of basic, nitrogencontaining compounds displaying potent affinity for the Sig-Rs (compounds 6{1¨C3, 8, and 9}). ËäÈ»ÓÉÓÚÓжàÀàÐ͵ÄGµ°°×żÁªÊÜÌåÄ¿±êÎÈçÉöÉÏÏÙËØ£¬µ¨¼î£¬ÑªÇåËØ£¬¶à°Í°·ÒÔ¼°Sig-RÀࣩ¶øÊ¹µÃ»¯ºÏÎïµÄÇ׺ÍÁ¦½ÏµÍ£¬µ«ÕâÖÖÇé¿öµÄ³öÏÖ¶ÔÓÚ½øÒ»²½µÄµ÷²é·ÃÎÊÒ²ÊÇÓÐÁ¦µÄ¡£ ÎÒÃÇ×î¸ÐÐËȤµÄ¾ÛÀà»ù±¾Îº¬µªÀ໯ºÏÎïÔÚSig- RÉÏÏÔʾ³öÇ¿´óµÄÇ׺ÍÁ¦£¨»¯ºÏÎï6{1-3£¬8£¬9}£©¡£ Of secondary interest was the adrenergic binding of the tertiary amines derived from the amide reduction of the core scaffolds. õ£°·»¹ÔµÄÑÜÉúÎïÈçÈý¼¶°·£¬ÆäÓëÉöÉÏÏÙËØÊÜÌåµÄ½áºÏÒ²ÊÇÎÒÃǽÓ×ÅÐèÒªÑо¿µÄ¡£ |
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