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| We have synthesized a library of 190 polycyclic, alkaloid/terpenoid-like small molecules using solid-phase transition metalmediated cycloaddition and cyclization reactions of relatively simple enyne and diyne substrates. The key sulfinamide lynchpin was also diversified to the corresponding free amines and sulfonamides. Translation to solid-phase synthesis using a TBDAS linker was greatly facilitated by the use of a TBDPS surrogate during earlier solution-phase studies. Principal component analysis of structural and physicochemical parameters indicates that this library samples regions of chemical space that overlap with bona fide natural products and are distinct from those areas accessed by conventional drugs and drug-like libraries. Aromatic ring content and stereochemical complexity were identified as two major factors that distinguish natural products from synthetic drugs. The complete set of 190 compounds is now being screened in a variety of assays at The Rockefeller University High-Throughput Screening Resource Center. In addition, 94 compounds have been submitted for broad screening in the National Institutes of Health (NIH) Molecular Libraries Program . These efforts will provide critical data to evaluate the biological properties of this library and to assess the abilities of natural product-based libraries to address challenging biological targets that remain intractable to conventional drug-like molecules. |
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lgq101(½ð±Ò+30, ·ÒëEPI+1): лл 2011-06-02 09:55:59
| We have synthesized a library of 190 polycyclic, alkaloid/terpenoid-like small molecules using solid-phase transition metal mediated cycloaddition and cyclization reactions of relatively simple enyne and diyne substrates.ÎÒÃÇÒÔÏà¶Ô¼òµ¥µÄϩȲºÍ¶þȲΪµ×Îͨ¹ý¹ÌÏà¹ý¶É½ðÊôý½é»·¼Ó³ÉºÍ»·ºÏ·´Ó¦¹¹½¨Á˰üÀ¨190ÖÖ¶à»·¡¢ÉúÎï¼î/ÀàÝÆÑùС·Ö×ÓµÄÎĿ⡣ The key sulfinamide lynchpin was also diversified to the corresponding free amines and sulfonamides. ¹Ø¼üµÄÑÇ»Çõ£°·Ò²ËæÏàÓ¦µÄÓÎÀë°·ºÍ»Çõ£°·ÀàµÄ²»Í¬¶ø¶àÑù»¯¡£Translation to solid-phase synthesis using a TBDAS linker was greatly facilitated by the use of a TBDPS surrogate during earlier solution-phase studies.ʹÓÃÔÚÏÈǰµÄÒºÏàÑо¿ÖеÄTBDPS´úÓÃÆ·£¬´Ù½øÁËÀûÓÃTBDAS linkerʵÏÖÏò¹ÌÏàºÏ³ÉµÄת»»¡£ Principal component analysis of structural and physicochemical parameters indicates that this library samples regions of chemical space that overlap with bona fide natural products and are distinct from those areas accessed by conventional drugs and drug-like libraries. ½á¹¹ºÍÎïÀí»¯Ñ§²ÎÊýµÄÖ÷³É·Ö·ÖÎö±êÃ÷£¬ÕâÒ»ÎÄ¿âÓëÕæÊµµÄÌìÈ»²úÎïÔÚ»¯Ñ§¿Õ¼äÇøÓòÉÏÓÐÖØµþ£¬¶øÓëÓÉ´«Í³µÄÒ©Îï»òÒ©ÎïÑùÎÄ¿â»ñÈ¡µÄÇøÓò½ØÈ»²»Í¬¡£Aromatic ring content and stereochemical complexity were identified as two major factors that distinguish natural products from synthetic drugs. ·¼»·º¬Á¿ºÍÁ¢Ì廯ѧ¸´ÔÓ¶ÈÊÇÁ½¸öÇø·ÖÌìÈ»²úÎïºÍºÏ³ÉÒ©ÎïµÄÖ÷ÒªÒòËØ¡£The complete set of 190 compounds is now being screened in a variety of assays at The Rockefeller University High-Throughput Screening Resource Center. ÕûÌ×190ÖÖ»¯ºÏÎïÏÖÔÚÔÚÂå¿Ë·ÆÀÕ´óѧ¸ßͨÁ¿É¸Ñ¡×ÊÔ´ÖÐÐĽÓÊܸ÷ÖÖ¸÷ÑùµÄɸѡÊÔÑé¡£In addition, 94 compounds have been submitted for broad screening in the National Institutes of Health (NIH) Molecular Libraries Program . ´ËÍ⣬ÆäÖеÄ94ÖÖ»¯ºÏÎﻹÌá½»¸øNIH·Ö×ÓÎÄ¿âÏîÄ¿½øÐиü¹ã·ºµÄɸѡ¡£These efforts will provide critical data to evaluate the biological properties of this library and to assess the abilities of natural product-based libraries to address challenging biological targets that remain intractable to conventional drug-like molecules.ÕâЩŬÁ¦½«Ìṩ±ØÒªµÄÊý¾Ý£¬ÒÔÆÀ¼ÛÕâÒ»ÎÄ¿âÖл¯ºÏÎïµÄÉúÎïѧÐÔÄÜºÍÆÀ¹À»ùÓÚÌìÈ»²úÎïµÄÎÄ¿âÔÚÓ¦¶Ô´«Í³Ò©ÎïÑù·Ö×ÓÎÞ·¨´¦ÀíµÄÉúÎï°Ð±ê·½ÃæµÄÄÜÁ¦¡£ |
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