Remote Oxidation of Aliphatic C–H Bonds in Nitrogen-Containing Molecules
摘要:
Nitrogen heterocycles are ubiquitous in natural products and pharmaceuticals. Herein, we disclose a nitrogen complexation strategy that employs a strong Bronsted acid (HBF4) or an azaphilic Lewis acid (BF3) to enable remote, non-directed C(sp(3))-H oxidations of tertiary, secondary, and primary amine- and pyridine-containing molecules with tunable iron catalysts. Imides resist oxidation and promote remote functionalization.
Remote Oxidation of Aliphatic C–H Bonds in Nitrogen-Containing Molecules
摘要:
Nitrogen heterocycles are ubiquitous in natural products and pharmaceuticals. Herein, we disclose a nitrogen complexation strategy that employs a strong Bronsted acid (HBF4) or an azaphilic Lewis acid (BF3) to enable remote, non-directed C(sp(3))-H oxidations of tertiary, secondary, and primary amine- and pyridine-containing molecules with tunable iron catalysts. Imides resist oxidation and promote remote functionalization.
Ruthenium-Catalyzed C–H Hydroxylation in Aqueous Acid Enables Selective Functionalization of Amine Derivatives
作者:James B. C. Mack、John D. Gipson、J. Du Bois、Matthew S. Sigman
DOI:10.1021/jacs.7b05469
日期:2017.7.19
catalytic protocol for sp3 C-H hydroxylation is described. Reactions are performed in aqueous acid using a bis(bipyridine)Ru catalyst to enable oxidation of substrates possessing basic amine functional groups. Tertiary and benzylic C-H hydroxylation is strongly favored over N-oxidation for numerous amine derivatives. With terpene-derived substrates, similar trends in reactivity toward tertiary and benzylic
Correction to “Ruthenium-Catalyzed C–H Hydroxylation in Aqueous Acid Enables Selective Functionalization of Amine Derivatives”
作者:James B. C. Mack、John D. Gipson、J. Du Bois、Matthew S. Sigman
DOI:10.1021/jacs.1c00564
日期:2021.2.24
Information files are available without a subscription to ACS Web Editions. Such files may be downloaded by article for research use (if there is a public use license linked to the relevant article, that license may permit other uses). Permission may be obtained from ACS for other uses through requests via the RightsLink permission system: http://pubs.acs.org/page/copyright/permissions.html. This article has
页面9504.产品的结构3CC在表2中被发现是错误分配。我们感谢Phil Baran教授和Rafael Navratil博士提请我们注意此错误。正确的结构在类固醇的C-9位置(3cc',如下所示)包含额外的苯甲醇。随着分子量的变化,分离的产率为29%。支持信息。错误的结构和产量也出现在SI中的S20和S84页上。因此,第S20页上的HRMS条目应如下所示:“ C 19 H 18 F 3 O 5 S +(M–O + Na)+的HRMS(ESI-TOF)m / z415.0822,发现为415.0857”。此处提供了完整的校正后的SI。可从https://pubs.acs.org/doi/10.1021/jacs.1c00564免费获得支持信息。 实验细节(已更正)(PDF)实验详细信息(已更正)(PDF)无需订阅ACS Web Edition,即可获得大多数电子支持信息文件。此类文件可以按文
[EN] METHODS AND COMPOSITIONS FOR TARGETING TREGS USING CCR8 INHIBITORS<br/>[FR] MÉTHODES ET COMPOSITIONS POUR CIBLER DES TREG AU MOYEN D'INHIBITEURS DE CCR8
申请人:NANJING IMMUNOPHAGE BIOTECH CO LTD
公开号:WO2022000443A1
公开(公告)日:2022-01-06
Provided herein are compounds of Formula (I) which can be used as CCR8 inhibitors, which can be used as treatment or prevention of cancer using CCR8 inhibitors targeted tumor specific T regulatory cells.
Exploratory and mechanistic aspects of the electron-transfer photochemistry of olefin-N-heteroaromatic cation systems
作者:Ung Chan Yoon、Suzanne L. Quillen、Patrick S. Mariano、Rosemarie Swanson、Jerome L. Stavinoha、Elliott Bay
DOI:10.1021/ja00343a022
日期:1983.3
Remote Oxidation of Aliphatic C–H Bonds in Nitrogen-Containing Molecules
作者:Jennifer M. Howell、Kaibo Feng、Joseph R. Clark、Louis J. Trzepkowski、M. Christina White
DOI:10.1021/jacs.5b10299
日期:2015.11.25
Nitrogen heterocycles are ubiquitous in natural products and pharmaceuticals. Herein, we disclose a nitrogen complexation strategy that employs a strong Bronsted acid (HBF4) or an azaphilic Lewis acid (BF3) to enable remote, non-directed C(sp(3))-H oxidations of tertiary, secondary, and primary amine- and pyridine-containing molecules with tunable iron catalysts. Imides resist oxidation and promote remote functionalization.