3-Borylbenzynes were generated in situ from 6-boryl-2-iodophenyl trifluoromethanesulfonates using i-PrMgCl·LiCl and applied to Diels–Alder reactions with substituted furans and pyrroles. The reactions allowed good functional group compatibility and produced the cycloadducts in high yields with high distal selectivities. Effective conversion of the boryl group of the products was achieved. A series
B+[4+2]: 3‐Borylbenzynes undergo Diels–Alder reactions with substituted furans and pyrroles to give highly functionalized arylboronic acid derivatives with either good or exclusive regioselectivities (see picture). The effect of the boryl group on the regioselectivity arises from electronic rather than steric effects.
B + [4 + 2]:3-甲硼烷基苯甲醛与取代的呋喃和吡咯进行Diels-Alder反应,得到具有良好或排他性区域选择性的高度官能化的芳基硼酸衍生物(参见图片)。硼烷基对区域选择性的影响来自电子效应而不是空间效应。
[EN] COMPOUNDS AND COMPOSITIONS FOR TREATING CNS DISORDERS<br/>[FR] COMPOSÉS ET COMPOSITIONS POUR LE TRAITEMENT DE TROUBLES DU SNC
申请人:BLUE OAK PHARMACEUTICALS INC
公开号:WO2021138315A1
公开(公告)日:2021-07-08
The present disclosure provides compounds and pharmaceutical compositions thereof. Methods of making and using the compounds are also provided. The compounds can be used for the treatment, prevention, diagnosis and/or management of various CNS disorders.
A pharmaceutical composition comprising as an active ingredient, an aromatic heterocyclic compound represented by the formula (I):
[wherein Q
1
represents CR
2
(wherein R
2
represents a hydrogen atom or the like) or the like; Q
2
represents CR
3
(wherein R
3
represents a hydrogen atom or the like) or the like; Q
3
represents a nitrogen atom or the like; R
1
represents —C(═O)OR
16
(wherein R
16
represents a hydrogen atom or the like) or the like; R
5
represents a hydrogen atom or the like; R
6
represents optionally substituted cycloalkyl or the like; X and Y may be the same or different and each represent CH in which H may be substituted with a substituent or the like; and Z represents a nitrogen atom or the like] or the like is provided.
Nitroso-Diels-Alder cycloaddition of various dienes combined with a straightforward sequence including N-O bond cleavage and oxidation reaction of the resulting (Z)-γ-aminoenone (or enal) leads to polysubstituted pyrrolic units.