[EN] TARGETED ABERRANT ALPHA-SYNUCLEIN SPECIES AND INDUCED UBIQUITINATION AND PROTEOSOMAL CLEARANCE VIA CO-RECRUITMENT OF AN E3-LIGASE SYSTEM<br/>[FR] ESPÈCE D'ALPHA-SYNUCLÉINE ABERRANTE CIBLÉE ET UBIQUITINATION INDUITE ET CLAIRANCE PROTÉOSOMIQUE PAR CO-RECRUTEMENT D'UN SYSTÈME E3-LIGASE
申请人:DANA FARBER CANCER INST INC
公开号:WO2021257650A1
公开(公告)日:2021-12-23
Disclosed are bispecific compounds (degraders) that target α-synuclein protein for degradation. Also disclosed are pharmaceutical compositions containing the degraders and methods of using the compounds to treat neurodegenerative diseases.
DIGLYCOLAMIDE DERIVATIVES FOR SEPARATION AND RECOVERY OF RARE EARTH ELEMENTS FROM AQUEOUS SOLUTIONS
申请人:UT-Battelle, LLC
公开号:US20220002229A1
公开(公告)日:2022-01-06
Rare earth extractant compounds having the following structure:
wherein R
1
, R
2
, R
3
, and R
4
are independently selected from alkyl groups containing 1-30 carbon atoms and optionally containing an ether or thioether linkage connecting between carbon atoms, provided that the total carbon atoms in R
1
, R
2
, R
3
, and R
4
is at least 12; R
5
and R
6
are independently selected from hydrogen atom and alkyl groups containing 1-3 carbon atoms; and provided that at least one of the conditions (i)-(iv) apply as follows: presence of a distal branched group in at least one of R
1
-R
4
(condition i), asymmetry in R
1
-R
4
(condition ii), presence of amine-containing ring (condition iii), or presence of lactam ring (condition iv). Also described are hydrophobic water-insoluble solutions containing at least one extractant compound of Formula (1), as well as method for extracting rare earth elements from aqueous solution by contacting the aqueous solution with the water-insoluble solution.
Process for producing (2r)-2-propyloctanoic acid and intermediate therefor
申请人:Hamada Yasumasa
公开号:US20060135802A1
公开(公告)日:2006-06-22
The present invention relates to a process for producing (2R)-2-propyloctanoic acid, which comprises subjecting (2R)-2-hexyloxirane to a two-carbon adding reaction with ring-opening reaction, followed by a protecting reaction of a hydroxyl group to convert it to a compound represented by formula (I):
(wherein X represents an optionally protected hydroxyl group) and then subjecting the compound to a one-carbon adding reaction to convert it to (2R)-2-propyloctanamide, followed by recrystallization and hydrolysis. According to the process of the present invention, (2R)-2-propyloctanoic acid can be produced by less steps as compared with the conventional method without a dangerous reaction.
Lipophilic diglycolamide compounds for extraction of rare earth metals from aqueous solutions
申请人:UT-Battelle, LLC
公开号:US11040296B2
公开(公告)日:2021-06-22
A method for extracting rare earth metals (e.g., lanthanides and/or actinides) from aqueous solution, the method comprising: (i) acidifying an aqueous solution containing said rare earth metals with sulfuric acid to result in an acidified aqueous solution containing 1-12 M concentration of sulfuric acid; and (ii) contacting the acidified aqueous solution with an aqueous-insoluble hydrophobic solution comprising a rare earth extractant molecule dissolved in an aqueous-insoluble hydrophobic solvent to result in extraction of one or more of the rare earth metals into the aqueous hydrophobic solution, wherein the rare earth extractant molecule has the following structure:
wherein R1, R2, R3, and R4 are independently selected from hydrocarbon groups containing 1-20 carbon atoms, provided that the total carbon atoms in R1, R2, R3, and R4 is at least 12; and R5 and R6 are independently selected from hydrogen atom and hydrocarbon groups containing 1-3 carbon atoms.
一种从水溶液中提取稀土金属(如镧系元素和/或锕系元素)的方法,该方法包括镧系元素和/或锕系元素)的方法,该方法包括(i) 用硫酸酸化含有上述稀土金属的水溶液,以得到含有 1-12 M 浓度硫酸的酸化水溶液;(ii) 将酸化水溶液与不溶于水的疏水性溶液接触,该疏水性溶液包含溶解在不溶于水的疏水性溶剂中的稀土萃取剂分子,从而将一种或多种稀土金属萃取到疏水性溶液中,其中稀土萃取剂分子具有以下结构:
其中R1、R2、R3和R4独立地选自含有1-20个碳原子的烃基,条件是R1、R2、R3和R4中的碳原子总数至少为12;R5和R6独立地选自氢原子和含有1-3个碳原子的烃基。