PMID- 35777271 OWN - NLM STAT- MEDLINE DCOM- 20220713 LR - 20220730 IS - 1464-3391 (Electronic) IS - 0968-0896 (Linking) VI - 69 DP - 2022 Sep 1 TI - SPION nanoparticles for delivery of dopaminergic isoquinoline and benzazepine derivatives. PG - 116910 LID - S0968-0896(22)00303-0 [pii] LID - 10.1016/j.bmc.2022.116910 [doi] AB - Superparamagnetic iron nanoparticles (SPIONs) have become one of the most useful colloidal systems in nanomedicine. We report here the preparation of new hybrid core@shell systems based on SPION nanoparticles coated with a SiO(2) shell (SPION@SiO(2)) and functionalized with carboxyl groups (SPION@SiO(2)-COOH). A series of new N-alkylamino- and N-alkylamido-terminated 1-phenyl- tetrahydroisoquinolines (THIQs) and 3-tetrahydrobenzazepines (THBs) derivatives presenting -SMe and -Cl groups, respectively, with potential dopaminergic activity, are synthesized and incorporated to the hybrid system. We include the synthetic details for THIQs and THBs derivatives preparation and investigate the influence of the terminal-functional group as well as the number of carbon atoms linked to THIQ and THB molecules during the coupling to the SPION@SiO(2)-COOH. Nuclear magnetic resonance (NMR) and electron ionization mass spectrometry (EI-MS) are used to characterize the synthesized THIQs and THBs. High-angle annular dark-field transmission electron microscopy (HAADF-TEM), energy dispersive X-ray transmission electron microscopy (EDX-TEM), and proton high-resolution magic angle spinning NMR spectroscopy(1)H HRMAS-NMR) are used to confirm the presence of THB and THIQ molecules onto the surface of the nanoparticles. The hybrid SPION@SiO(2)-THIQ and THB systems show significant activity toward the D(2) receptor, reaching Ki values of about 20 nM, thus having potential application in the treatment of central nervous system (CNS) diseases. CI - Copyright (c) 2022 Elsevier Ltd. All rights reserved. FAU - Lucena-Serrano, Cristina AU - Lucena-Serrano C AD - Dpto. Quimica Organica, Universidad de Malaga, Campus de Teatinos s/n, 29071 Malaga, Spain. FAU - Lucena-Serrano, Ana AU - Lucena-Serrano A AD - Dpto. Quimica Organica, Universidad de Malaga, Campus de Teatinos s/n, 29071 Malaga, Spain. FAU - Diaz, Amelia AU - Diaz A AD - Dpto. Quimica Organica, Universidad de Malaga, Campus de Teatinos s/n, 29071 Malaga, Spain. Electronic address: amelia@uma.es. FAU - Valpuesta, Maria AU - Valpuesta M AD - Dpto. Quimica Organica, Universidad de Malaga, Campus de Teatinos s/n, 29071 Malaga, Spain. FAU - Villaverde, Gonzalo AU - Villaverde G AD - Dep. Chemistry in Pharmaceutical Science, Universidad Complutense de Madrid, Plaza Ramon y Cajal s/n, 28040 Madrid, Spain. FAU - Manuel Lopez-Romero, J AU - Manuel Lopez-Romero J AD - Dpto. Quimica Organica, Universidad de Malaga, Campus de Teatinos s/n, 29071 Malaga, Spain. Electronic address: jmromero@uma.es. FAU - Sarabia, Francisco AU - Sarabia F AD - Dpto. Quimica Organica, Universidad de Malaga, Campus de Teatinos s/n, 29071 Malaga, Spain. FAU - Laurenti, Marco AU - Laurenti M AD - Dep. Chemistry in Pharmaceutical Science, Universidad Complutense de Madrid, Plaza Ramon y Cajal s/n, 28040 Madrid, Spain; Instituto de Ciencia de Materiales de Madrid, c/Sor Juana Ines de la Cruz, Canto- blanco, 28049 Madrid, Spain; Instituto Ramon y Cajal de Investigacion Sanitaria, Hospital Universitario Ramon y Cajal, 28034 Madrid, Spain. FAU - Rubio-Retama, Jorge AU - Rubio-Retama J AD - Dep. Chemistry in Pharmaceutical Science, Universidad Complutense de Madrid, Plaza Ramon y Cajal s/n, 28040 Madrid, Spain. FAU - Contreras-Caceres, Rafael AU - Contreras-Caceres R AD - Dep. Chemistry in Pharmaceutical Science, Universidad Complutense de Madrid, Plaza Ramon y Cajal s/n, 28040 Madrid, Spain. Electronic address: rafcontr@ucm.es. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20220627 PL - England TA - Bioorg Med Chem JT - Bioorganic & medicinal chemistry JID - 9413298 RN - 0 (Benzazepines) RN - 0 (Ferric Compounds) RN - 0 (Isoquinolines) RN - 7631-86-9 (Silicon Dioxide) SB - IM MH - Benzazepines/pharmacology MH - *Ferric Compounds MH - Isoquinolines/pharmacology MH - Magnetic Iron Oxide Nanoparticles MH - *Nanoparticles/chemistry MH - Silicon Dioxide/chemistry OTO - NOTNLM OT - Benzazepine OT - Dopamine receptors OT - Dopaminergic activity OT - Isoquinoline OT - SPIONs OT - SiO(2) shell OT - Surface functionalization EDAT- 2022/07/02 06:00 MHDA- 2022/07/14 06:00 CRDT- 2022/07/01 18:27 PHST- 2022/01/31 00:00 [received] PHST- 2022/06/23 00:00 [revised] PHST- 2022/06/23 00:00 [accepted] PHST- 2022/07/02 06:00 [pubmed] PHST- 2022/07/14 06:00 [medline] PHST- 2022/07/01 18:27 [entrez] AID - S0968-0896(22)00303-0 [pii] AID - 10.1016/j.bmc.2022.116910 [doi] PST - ppublish SO - Bioorg Med Chem. 2022 Sep 1;69:116910. doi: 10.1016/j.bmc.2022.116910. Epub 2022 Jun 27.