90178-72-6Relevant articles and documents
Preparation method of 5-(4-cyanophenoxy)-2, 3-dihydro-1-hydroxy-2, 1-benzoxaborole intermediate
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Paragraph 0046-0049; 0054-0057; 0062-0065, (2019/11/04)
The invention discloses a preparation method of 5-(4-cyanophenoxy)-2, 3-dihydro-1-hydroxy-2, 1-benzoxaborole intermediate. The 5-(4-cyanophenoxy)-2, 3-dihydro-1-hydroxy-2, 1-benzoxaborole intermediatecomprises a structure as shown in a formula IV. The pre
Crisaborole intermediate preparation method
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Paragraph 0046-0049; 0053-0056; 0061-0064, (2019/11/29)
The invention discloses a crisaborole intermediate preparation method, wherein the crisaborole intermediate has a structure represented by a formula IV. The preparation method comprises: in the presence of a first organic solvent and a first alkali, carrying out a contact reaction on a compound represented by a formula I and p-fluorobenzonitrile to obtain a compound represented by a formula II; inthe presence of a second solvent, carrying out a contact reaction on the compound represented by the formula II and an alkali metal borohydride to obtain a compound represented by a formula III; andin the presence of a third organic solvent and a catalyst, carrying out a contact reaction on the compound represented by the formula III and a bromination reagent to obtain a compound represented bya formula IV. According to the present invention, with the preparation method, the reaction raw material p-fluorobenzonitrile is used as the ortho-position steric hindrance group, such that the use ofprotective groups is eliminated, the selectivity of the bromination reaction is improved, the process cost is low, the raw material price is cheap, and the method can be well used for industrial production.
Probing the Hydrophobic Binding Pocket of G-Protein-Coupled Lysophosphatidylserine Receptor GPR34/LPS1 by Docking-Aided Structure-Activity Analysis
Sayama, Misa,Inoue, Asuka,Nakamura, Sho,Jung, Sejin,Ikubo, Masaya,Otani, Yuko,Uwamizu, Akiharu,Kishi, Takayuki,Makide, Kumiko,Aoki, Junken,Hirokawa, Takatsugu,Ohwada, Tomohiko
supporting information, p. 6384 - 6399 (2017/08/02)
The ligands of certain G-protein-coupled receptors (GPCRs) have been identified as endogenous lipids, such as lysophosphatidylserine (LysoPS). Here, we analyzed the molecular basis of the structure-activity relationship of ligands of GPR34, one of the LysoPS receptor subtypes, focusing on recognition of the long-chain fatty acid moiety by the hydrophobic pocket. By introducing benzene ring(s) into the fatty acid moiety of 2-deoxy-LysoPS, we explored the binding site's preference for the hydrophobic shape. A tribenzene-containing fatty acid surrogate with modifications of the terminal aromatic moiety showed potent agonistic activity toward GPR34. Computational docking of these derivatives with a homology modeling/molecular dynamics-based virtual binding site of GPR34 indicated that a kink in the benzene-based lipid surrogates matches the L-shaped hydrophobic pocket of GPR34. A tetrabenzene-based lipid analogue bearing a bulky tert-butyl group at the 4-position of the terminal benzene ring exhibited potent GPR34 agonistic activity, validating the present hydrophobic binding pocket model.
PYRROLIDINE DERIVATIVE OR SALT THEREOF
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Page/Page column 46, (2008/06/13)
[PROBLEMS] To provide a compound which can be used for the treatment of a disease associated with a calcium-sensing receptor (CaSR), particularly hyperparathyroidism. [MEANS FOR SOLVING PROBLEMS] It is found that a novel pyrrolidine derivative having an aminomethyl group substituted by an arylaklyl group or the like or a salt thereof has an excellent CaSR agonistic modulation effect and also has an excellent selectivity in the inhibition of CYP2D6 which may cause a drug-drug interaction. Thus, the novel pyrrolidine derivative is useful as a therapeutic agent for a disease associated with CaSR (e.g., hyperparathyroidism, renal osteodystrophy and hypercalcemia).