进行了钯催化的分子内串联环化反应,以合成致密的顺式/顺式稠合的氮杂四环结构。该过程涉及钯(II)催化的好氧aza-Wacker反应,然后是钯(0)催化的Heck反应。系统地研究了溶剂和苯的取代方式对一锅两步级联反应的影响,并提出了可能的机理。使用钯催化的aza-Wacker-Heck环化反应,也可以快速合成应变的五氢苯并[ f ]环戊基[ hi ]吲哚并嗪-6-和外消旋的γ-二十烷。
[EN] MODULATORS OF HEMOGLOBIN FOR THE TREATMENT OF SICKLE CELL DISEASE<br/>[FR] MODULATEURS DE L'HÉMOGLOBINE POUR LE TRAITEMENT DE LA DRÉPANOCYTOSE
申请人:GLOBAL BLOOD THERAPEUTICS INC
公开号:WO2020072377A1
公开(公告)日:2020-04-09
The present disclosure relates to compounds of the general formula (I) and pharmaceutical compositions containing them. The compounds are suitable as modulators of hemoglobin and thus useful in treating disorders mediated by hemoglobin such as sickle cell disease.
Compounds of the formula (I) for use as an estrogen receptor-&bgr;-selective ligand are described wherein: X is O or S; and R
1
, R
3
R
6
are as described in the specification. The use of these compounds in treating Alzheimer's disease, anxiety disorders, depressive disorders, osteoporosis, cardiovascular disease, rheumatoid arthritis and prostate cancer is described; as are processes for making them.
A general route for<sup>13</sup>C-labeled fluorenols and phenanthrenols via palladium-catalyzed cross-coupling and one-carbon homologation
作者:Ruilian Wu、L. A. ‘Pete’ Silks、Morgane Olivault-Shiflett、Robert F. Williams、Erick G. Ortiz、Philip Stotter、David B. Kimball、Rodolfo A. Martinez
DOI:10.1002/jlcr.3066
日期:2013.9
phenanthrenols were synthesized from commercially available (13)C-labeled starting material giving rise to M + 6 isotopomers. This was accomplished using key palladium-catalyzed cross-coupling and one-carbonhomologation strategies. The conditions for these reactions were optimized, and the new chemical routes are efficient in the number of chemical steps, can be scaled to afford gram quantities and occur in
一系列 (13) C 标记的多环芳烃 (PAH)、芴醇和菲酚由市售的 (13) C 标记起始材料合成,产生 M + 6 同位素。这是使用关键的钯催化交叉偶联和一碳同源策略完成的。这些反应的条件得到了优化,新的化学路线在化学步骤的数量上是有效的,可以根据 (13)C 标签进行缩放以提供克数量和良好的产率。这些标记的化合物作为更复杂多环芳烃的前体,可用作质谱和核磁共振波谱研究中的内标,用于监测环境污染和多环芳烃及其代谢物的生物暴露。
Regiodivergent Synthesis of Methylene and Methyl Ring-Fused Isoquinolinones: Base-Promoted Isomerization of <i>N</i>-Allyl Amides
prepared using a palladium(II)-catalyzed aerobic aza-Wacker reaction, followed by a base- and temperature-controlled Heck reaction catalyzed by palladium(0). Exo- to endo-double-bond migration in isoquinolinones was achieved with 93–99% yields by treatment of the Heck products with Cs2CO3 in dimethyl sulfoxide (DMSO) at 150 °C. A probable mechanism for Cs2CO3-promoted olefin isomerization was proposed
亚甲基和甲基三环异喹啉酮是使用钯 (II) 催化的好氧氮杂瓦克反应选择性制备的,然后是由钯 (0) 催化的碱和温度控制的 Heck 反应。通过在 150 °C 下用二甲基亚砜 (DMSO) 中的Cs 2 CO 3处理 Heck 产物,异喹啉酮中的外-内-双键迁移实现了 93-99% 的收率。提出了 Cs 2 CO 3促进烯烃异构化的可能机制,并使用 D-同位素标记实验对其进行了检验。最后,使用钯催化的 aza-Wacker/Heck/migration 序列合成了一种 13-methyl-8-oxoprotoberberine 生物碱元酰胺。
Therapeutic benzothiazole compounds
申请人:Barlaam Bernard
公开号:US20060111408A1
公开(公告)日:2006-05-25
Compounds of the formula (I)
for use as an estrogen receptor -β-selective ligand are described wherein:
X is O or S; and R
1
, R
3
-R
6
are as described in the specification. The use of these compounds in treating Alzheimer's disease, anxiety disorders, depressive disorders, osteoporosis, cardiovascular disease, rheumatoid arthritis and prostate cancer is described; as are processes for making them.