Asymmetric synthesis of (S)-phenylacetylcarbinol – closing a gap in C–C bond formation

Asymmetric synthesis of (S)-phenylacetylcarbinol – closing a gap in C–C bond formation
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(S)-苯乙酰基甲醇的不对称合成 â 缩小 CâC 键形成的间隙

DOI:
10.1039/c6gc01803c
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发表时间:
2017
期刊:
影响因子:
9.8
通讯作者:
Rother D
Rother D
中科院分区:
化学1区
文献类型:
--
作者:
Sehl T;Bock S;Marx L;Maugeri Z;Walter L;Westphal R;Vogel C;Menyes U;Erhardt M;Müller M;Pohl M;Rother D

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(S)-苯乙酰甲醇[(S)-PAC]及其衍生物是合成多种活性药物成分的有价值的中间体,但其选择性合成具有挑战性。由于没有高选择性的酶或化学催化剂,我们采用半理性的酶工程方法,为合成(S)-PAC量身定制了一种具有97%立体选择性的高效生物催化剂。通过对反应和工艺的优化,获得了工业上相关的产品浓度>48g L−1(最高可达320 mM)。此外,最好的酶变体提供了广泛的环取代(S)-PAC衍生物,特别是间位取代产物,具有很高的立体选择性。
(S)-Phenylacetylcarbinol [(S)-PAC] and its derivatives are valuable intermediates for the synthesis of various active pharmaceutical ingredients (APIs), but their selective synthesis is challenging. As no highly selective enzymes or chemical catalysts were available, we used semi-rational enzyme engineering to tailor a potent biocatalyst to be >97% stereoselective for the synthesis of (S)-PAC. By optimizing the reaction and process used, industrially relevant product concentrations of >48 g L−1 (up to 320 mM) were achieved. In addition, the best enzyme variant gave access to a broad range of ring-substituted (S)-PAC derivatives with high stereoselectivity, especially for meta-substituted products.
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