Enantioselective Synthesis of Oxindole‐Derived α‐Aryl‐β‐Amino Acid Derivatives and δ‐Lactams with Homophthalic Anhydrides
作者:Zhixin Chang、Can Ye、Junfeng Fu、Paidamoyo Chigumbu、Xiaofei Zeng、Yongjiang Wang、Chengjun Jiang、Xiaoyu Han
DOI:10.1002/adsc.201901074
日期:2019.12.17
A highly diastereo‐ and enantioselective Mannich reaction of isatin‐derived N‐Boc imines with homophthalic anhydrides is disclosed for the first time, which allows the direct synthesis of a wide range of oxindole‐derived α‐aryl‐β‐amino acids with two adjacent carbon stereogenic centers in a highly stereoselective fashion (up to >95:5 dr & >99% ee). The resulted Mannich adducts can be easily converted
Diastereo- and Enantioselective Construction of Dihydroisocoumarin-Based Spirooxindole Frameworks <i>via</i>
Organocatalytic Tandem Reactions
作者:Jia-Le Wu、Bai-Xiang Du、Yu-Chen Zhang、Ying-Ying He、Jing-Yi Wang、Ping Wu、Feng Shi
DOI:10.1002/adsc.201600271
日期:2016.9.1
An organocatalyticasymmetric approach has been developed for the ennantioselective construction of dihydroisocoumarin‐based spirooxindole frameworks in high yields, excellent diastereo‐ and enantioselectivities (up to 99%, all >95:5 dr, up to 99% ee). This approach takes advantage of chiral thiourea‐tertiaryamine catalyzed tandemreaction of isatins with enolizable homophthalic anhydride, which has
Rational Design of Axially Chiral Styrene‐Based Organocatalysts and Their Application in Catalytic Asymmetric (2+4) Cyclizations
作者:Si‐Jia Liu、Zhi‐Han Chen、Jia‐Yi Chen、Shao‐Fei Ni、Yu‐Chen Zhang、Feng Shi
DOI:10.1002/anie.202112226
日期:2022.2.7
A new class of axiallychiral styrene-based organocatalysts has been rationally designed. They enable the chemo-, diastereo- and enantioselective (2+4) cyclization of 2-benzothiazolimines. This work represents the first design of styrene-based chiral thiourea tertiary amine catalysts and the first catalyticasymmetric (2+4) cyclization of 2-benzothiazolimines, and it gives an in-depth understanding
Tetrahydroisoquinoline compounds and fungicides containing the same
申请人:Tosoh Corporation
公开号:US05330991A1
公开(公告)日:1994-07-19
Tetrahydroisoquinoline derivatives of the following formula [I] and acid addition salts thereof, and ##STR1## (wherein in all of these formulae, R.sup.1 represents C.sub.1 -C.sub.5 straight or branched alkyl, C.sub.2 -C.sub.5 straight or branched alkenyl or C.sub.2 -C.sub.5 straight or branched alkynyl; R.sup.2 represents hydrogen atom, C.sub.1 -C.sub.10 straight or branched alkyl, C.sub.2 -C.sub.10 straight or branched alkenyl, C.sub.2 -C.sub.10 straight or branched alkynyl, C.sub.1 -C.sub.10 straight or branched alkoxy, C.sub.2 -C.sub.10 straight or branched alkenyloxy, C.sub.2 -C.sub.10 straight or branched alkynyloxy, or C.sub.1 -C.sub.10 straight or branched halogenated alkyl; R.sup.3, R.sup.4 R.sup.5 and R.sup.6, the same or different represent hydrogen atom, C.sub.1 -C.sub.10 straight or branched alkyl, C.sub.2 -C.sub.10 straight or branched alkenyl, C.sub.2 -C.sub.10 straight or branched alkynyl, C.sub.1 -C.sub.10 straight or branched alkoxy, C.sub.2 -C.sub.10 straight or branched alkenyloxy, C.sub.2 -C.sub.10 straight or branched alkynyloxy or halogen atom, with the proviso that R.sup.3, R.sup.4, R.sup.5 and R.sup.6 are not hydrogen atoms simultaneously).
The present invention relates to a series of Isoquinolone derivatives which are suitable to treat infections with viruses belonging to the family of the Flaviviridae and more preferably infections with Hepatitis C virus (HCV). The present invention also relates to Isoquinolone compounds for use as a medicine for the prevention or treatment of viral infections, preferably infections with viruses belonging to the family of the Flaviviridae.