Synthesis of ( S)-3-Amino-4-(difluoromethylenyl)-cyclopent-1-ene-1-carboxylic Acid (OV329), a Potent Inactivator of γ-Aminobutyric Acid Aminotransferase.

Synthesis of ( S)-3-Amino-4-(difluoromethylenyl)-cyclopent-1-ene-1-carboxylic Acid (OV329), a Potent Inactivator of γ-Aminobutyric Acid Aminotransferase.
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DOI:
10.1021/acs.orglett.8b01872
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发表时间:
2018-08-03
期刊:
影响因子:
5.2
通讯作者:
Silverman RB
Silverman RB
中科院分区:
化学1区
文献类型:
--
作者:
Moschitto MJ;Silverman RB

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(S)-3-氨基-4-(二氟亚甲基)环己-1-烯-1-羧酸(OV 329,1)正在开发用于治疗成瘾和癫痫。先前的14步OV 329合成产率低,涉及非选择性α-消除以形成环戊烯,需要使用叔丁基锂,并且在倒数第二步中产生有毒的硒副产物。一种新的合成方法避免了上述问题,大规模进行,将步骤数从14步减少到9步,总收率从3.7%提高到8.1%。
(S)-3-amino-4-(difluoromethylenyl)cyclopent-1-ene-1-carboxylic acid (OV329, 1) is being developed for the treatment of addiction and epilepsy. The previous 14-step synthesis of OV329 was low yielding, involved an unselective α-elimination to form the cyclopentene, required the use of tert-butyllithium, and produced toxic selenium by-products in the penultimate step. A new synthesis, which avoids the aforementioned issues, was carried out on large scale, reducing the step count from 14 to 9 steps and increasing the overall yield from 3.7% to 8.1%.
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