Adamantane-retropeptides, new building blocks for molecular channels
摘要:
Novel adamantane-oxalamide derivatives, N,N'-bis(1-adamantylglycine methyl ester)oxalamide (meso-1 and rac-1), N,N'-bis(3-aminoadamantane- 1-carboxylic acid methyl ester)oxalamide (2) and N,N'-bis(3-aminoadamantane-1-carboxylic acid)oxalamide (3) were prepared and structurally characterized by spectroscopic methods and X-ray analysis. Crystal packing of the structures meso-1 and rac-1 is defined by one-dimensional alpha-networks of hydrogen-bonded chains. The crystal structures of 2 and 3 are characterized by two-dimensional beta-networks of hydrogen bonds. The oxalamide 3 crystallizes as the solvates only. In the crystal structure of 3 the protic solvent participates in hydrogen bonding with the oxalamide moieties. However, in non-protic solvents 3 crystallizes as a solvate but the solvent does not participate in hydrogen bonding. The two-dimensional network of hydrogen bonds connecting molecules of 3 generates channels, which are filled by discrete solvent molecules. (C) 2007 Elsevier Ltd. All rights reserved.
γ-Aminoadamantanecarboxylic Acids Through Direct C–H Bond Amidations
作者:Lukas Wanka、Chiara Cabrele、Maksims Vanejews、Peter R. Schreiner
DOI:10.1002/ejoc.200600975
日期:2007.3
bromine-free, direct C–H bond amidations we have synthesized a large variety of adamantane amides. Depending on the precursors used these amides directly yield pharmaceutically active aminoadamantanes or γ-aminoadamantanecarboxylic acids after hydrolytic cleavage. Theserigid analogues of γ-aminobutyric acid (GABA) were protected at the C- and N-termini and we synthesized a number of peptides incorporating γ-a
The present invention provides adamantyl-diamide derivatives of formula (1):
wherein R
1
and R
2
are as defined herein, or a pharmaceutically acceptable salt thereof; and pharmaceutical compositions and methods using the same.
[EN] INHIBITORS OF ANOCTAMIN 6 PROTEIN AND USES THEREOF<br/>[FR] INHIBITEURS DE LA PROTÉINE ANOCTAMINE 6 ET LEURS UTILISATIONS
申请人:ILDONG PHARMACEUTICAL CO LTD
公开号:WO2022157686A1
公开(公告)日:2022-07-28
The present invention relates to a new compound that can inhibit an anoctamin 6 protein, a composition comprising the compound, a method for preparing the compound, and a method for using the compound or composition.
A series of new peptides (8-25) containing different unnatural amino acids of the adamantane type (1-6), was synthesized. Possible cytotoxic activity on human cervical adenocarcinoma ( HeLa), larynx carcinoma (HEp-2), colon carcinomas (HT-29, Caco-2), poorly differentiated cells from lymph node metastasis of colon carcinoma (SW-620), mammary gland adenocarcinoma (MCF-7), and melanoma (HBL) cells were tested by the MTT assay. The results were compared with the effect of methionine-enkephalin (Tyr-GlyGly-Phe-Met, or opioid growth factor, OGF), and its shorter N-terminal fragments. Peptide analogues containing CRR-dialkylated glycine (Aaa1, 1) or CR-alkylated glycine (Aaa2, 2) amino acid residues showed antitumor activity against melanoma, larynx carcinoma, colon carcinomas, and colon metastasis cell lines in vitro. The pentapeptide Tyr-(R,S)-Aaa2-Gly-Phe-Met (18) was the most effective analogue especially against the most antitumor drug-resistant cell lines HEp-2 and SW-620. Apoptosis as a mode of cell death was confirmed in these tumor cells after exposure to pentapeptide 18.
NOVIKOV S. S.; XARDIN A. P.; BUTENKO L. N.; KULEV I. A.; HOBAKOB I. A.; R+, ZH. ORGAN. XIMII, 1980, 16, HO 7, 1433-1434
作者:NOVIKOV S. S.、 XARDIN A. P.、 BUTENKO L. N.、 KULEV I. A.、 HOBAKOB I. A.、 R+