[EN] NOVEL ANALOGS OF PTEROSTILBENE AMINO ACID BEARING CARBONATES FOR TREATING A NON-ALCOHOLIC FATTY LIVER DISEASE AND NONALCOHOLIC STEATOHEPATITIS [FR] NOUVEAUX ANALOGUES DE CARBONATES PORTANT DES ACIDES AMINÉS PTÉROSTILBÈNE POUR LE TRAITEMENT D'UNE STÉATOSE HÉPATIQUE NON ALCOOLIQUE ET D'UNE STÉATOHÉPATITE NON ALCOOLIQUE
ALGINIC ACID DERIVATIVE BONDED TO NONSTEROIDAL ANTI-INFLAMMATORY COMPOUND
申请人:MOCHIDA PHARMACEUTICAL CO., LTD.
公开号:US20210000968A1
公开(公告)日:2021-01-07
Provided is water-soluble compound that can be used in a sustained-release preparation and is capable of stably releasing a fixed amount of an active ingredient in vivo by using the novel potential base material option of alginic acid as the base material. The present invention relates to an alginic acid derivative having a structure which is obtained by covalently bonding a nonsteroidal anti-inflammatory compound and alginic acid or a salt thereof via a linker, and preferably relates to an alginic acid derivative represented by formula (1) (in the formula: (A) represents one residue derived from alginic acid or a salt thereof and having the C(═O)— group from either L-guluronic acid or D-mannuronic acid, the monosaccharides that constitute alginic acid; (D) represents one residue from a nonsteroidal anti-inflammatory compound; and -L- represents a linker having a functional group which is capable of bonding to (A) by means of an amide bond and having a functional group which is capable of bonding to (D) by means of an ester bond).
(D)-L-(A) (1)
Polymer-mounted N3P(MeNCH2CH2)3N: a green, efficient and recyclable catalyst for room-temperature transesterifications and amidations of unactivated esters
作者:Venkat Reddy Chintareddy、Hung-An Ho、Aaron D. Sadow、John G. Verkade
DOI:10.1016/j.tetlet.2011.09.102
日期:2011.12
Merrifield resin-supported N3P(MeNCH2CH2)3N shows excellent activity in the transesterification of higher esters such as glyceryl tribenzoate to methyl esters. The catalyst was successfully cycled 20 times (albeit with an increase in reaction time) without compromising yield up to the 20th cycle. The catalyst also showed good performance in amidation reactions of unactivated esters with amino alcohols
Continuous-Flow N-Heterocyclic Carbene Generation and Organocatalysis
作者:Lorenzo Di Marco、Morgan Hans、Lionel Delaude、Jean-Christophe M. Monbaliu
DOI:10.1002/chem.201505135
日期:2016.3.18
of common N‐heterocycliccarbenes (NHCs) from stable imidazol(in)ium precursors using convenient and straightforward continuous‐flow setups with either a heterogeneous inorganic base (Cs2CO3 or K3PO4) or a homogeneous organic base (KN(SiMe3)2). In‐line quenching with carbon disulfide revealed that the homogeneous strategy was most efficient for the preparation of a small library of NHCs. The generation
评估了两种方法,可使用具有异质无机碱(Cs 2 CO 3或K 3 PO 4)的便捷,直接的连续流装置,从稳定的咪唑(in)前体中生成常见的N-杂环碳烯(NHC)。均匀的有机碱(KN(SiMe 3)2)。在线用二硫化碳淬火表明,均相策略对于制备小型NHCs最有效。下一步,用两个基准的NHC催化反应来生成游离亲核碳宾烯。即乙酸乙烯酯与苯甲醇的酯交换反应和N的酰胺化‐Boc‐甘氨酸甲酯与乙醇胺 两种有机催化转化都进行了总转化,萃取后获得了优异的收率,这证明了使用NHC进行连续流有机催化的第一个实例。
PH-sensitive linkers for delivering a therapeutic agent
申请人:GNT BIOTECH & MEDICALS CORPORATION
公开号:US10688193B2
公开(公告)日:2020-06-23
The invention provides a pH-sensitive linker that can simultaneously bind metallic nanoparticles and one or more agents with various molecular size. The linker of the invention can deliver the agents into cells involved in disease processes or close to cells so that the agents can selectively target and effect on the cells. The target delivery provided by the linker of the invention can be used for example for disease sensing, imaging, drug delivery, and therapy.
As an antitumor drug which is excellent in terms of antitumor effect and safety and has an excellent therapeutic effect, there is provided an antibody-drug conjugate in which an antitumor compound represented by the following formula is conjugated to an anti-HER2 antibody via a linker having a structure represented by the following formula: -L
1
-L
2
-L
P
-NH—(CH
2
)n
1
-L
a
-(CH
2
)n
2
—C(═O)— wherein the anti-HER2 antibody is connected to the terminal L
1
, and the antitumor compound is connected to the carbonyl group of the —(CH
2
)n
2
—C(═O)— moiety with the nitrogen atom of the amino group at position 1 as the connecting position.