Facilesyntheses of di- and triaza crown ethers by in tramolecular cyclization of oligoethylene glycols containing two or three imino groups or by their intermolecular cyclization with oligoethylene glycol bis(p-toluenesulfonate)s are described.
Macrocyclic compounds having oxa and aza linkages in the ring and
申请人:——
公开号:US03952015A1
公开(公告)日:1976-04-20
Compound having the formula ##EQU1## WHEREIN Y is --XCH.sub.2 CH.sub.2 --X--, --X(CH.sub.2 CH.sub.2 X).sub.2 or ##EQU2## p is 1 to 4, and each X is O or NH, N-alkanoyl, N-benzoyl wherein the benzene ring is optionally substituted with --NO.sub.2, --NH.sub.2, or --CH.sub.3, N-alkyl or N-.beta.-hydroxyalkyl each of up to 8 carbons and wherein the total number of N is 1 to 3 are disclosed. The compounds can be polymerized by opening of the oxetane ring in the presence of electrophilic agents, or the oxetane ring can be hydrolyzed to a dihydroxy group and reacted with diacid halides to form polyesters or with diisocyanates to form polyurethanes. Both monomers and polymers complex metal ions and can be used to separate such ions from solutions.
[EN] MACROCYCLIC CHELATORS AND METHODS OF USE THEREOF<br/>[FR] CHÉLATEURS MACROCYCLIQUES ET LEURS PROCÉDÉS D'UTILISATION
申请人:JANSSEN BIOTECH INC
公开号:WO2020229974A1
公开(公告)日:2020-11-19
Macrocyclic chelators (I) for chelation of alpha-emitting radiometal ions, such as actinium-225 are provided. Also provided are radiometal complexes containing an alpha-emitting radiometal ion bound to the macrocyclic chelator via coordinate bonding, and radioimmunoconjugates containing the radiometal complexes covalently linked to a targeting ligand, such as an antibody or antigen binding fragment thereof. The radioimmunoconjugates can be produced by click chemistry reactions. Methods of using the radiocomplexes and radioimmunoconjugates for selectively targeting neoplastic cells for radiotherapy and for treating neoplastic diseases and disorders are also described.