Construction of Chiral Tetrahydro-β-Carbolines: Asymmetric Pictet-Spengler Reaction of Indolyl Dihydropyridines
作者:Shou-Guo Wang、Zi-Lei Xia、Ren-Qi Xu、Xi-Jia Liu、Chao Zheng、Shu-Li You
DOI:10.1002/anie.201703178
日期:2017.6.19
A highly efficient synthesis of the enantioenriched tetrahydro-β-carbolines was developed by using a chiral phosphoric acid catalyzed Pictet–Spengler reaction of indolyl dihydropyridines. The reaction proceeds under mild reaction conditions to afford the desired chiral tetrahydro-β-carbolines in good to excellent yields (up to 96 %) and high enantioselectivities (up to 99 % ee). With this method, a
Provided is a compound represented by formula (1) or a pharmacologically acceptable salt thereof. (In the formula, A is C6-10 arylene, etc.; R1a, R1b and R1c each independently is a hydrogen atom, a halogen atom, a C1-4 alkyl group, a C1-4 alkoxy group, etc.; R2 is an optionally substituted C6-10 aryl group, an optionally substituted 5- to 12-membered monocyclic or polycyclic heteroaryl group, an optionally substituted C7-16 aralkyl group, etc.; m is 0, etc.; n is an integer of 0 to 2.)