An enzymatic process for the efficient asymmetric reduction of 3H‐indoles as well as 3H‐indole iodides was developed for the first time. Using a new imine reductase identified from Paenibacillus lactis (PlSIR), various chiral indolines were facilely synthesized in good yields and excellent enantiopurities (up to >99% ee) under mild reaction conditions.

中文翻译：

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利用乳酸芽孢杆菌的亚胺还原酶高效合成手性吲哚啉

为高效不对称还原3的酶促过程ħ以及3个-indoles ħ -吲哚碘化物被首次开发的。使用从乳酸杆菌（Paenibacillus lactis）（PISIR）中鉴定出的一种新的亚胺还原酶，可以在温和的反应条件下以高收率和优异的对映体纯度（最高> 99％ee）轻松合成各种手性二氢吲哚。