Pregled bibliografske jedinice broj: 516150
Synthesis, structural and conformational studies of Z- and E-isomers of fluorinated C-6 isobutenyl N-methyl thymine derivatives
Synthesis, structural and conformational studies of Z- and E-isomers of fluorinated C-6 isobutenyl N-methyl thymine derivatives // Journal of fluorine chemistry, 132 (2011), 9; 573-578 doi:10.1016/j.jfluchem.2011.06.002 (međunarodna recenzija, članak, znanstveni)
CROSBI ID: 516150 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Synthesis, structural and conformational studies of Z- and E-isomers of fluorinated C-6 isobutenyl N-methyl thymine derivatives
Autori
Krištafor, Svjetlana ; Meščić, Andrijana ; Cetina, Mario ; Korunda, Silvija ; Makuc, Damjan ; Plavec, Janez ; Raić-Malić, Silvana
Izvornik
Journal of fluorine chemistry (0022-1139) 132
(2011), 9;
573-578
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
mono- and difluorinated N-methyl thymine derivatives ; C-6 unsaturated side-chain ; Z- and E-isomers ; NMR conformational analysis ; positron emission tomography (PET)
Sažetak
A new series of conformationally restricted pyrimidine derivatives bearing C-6 isobutenyl side-chain (2–9) has been prepared. The novel fluoroalkenyl pyrimidine nucleoside mimetic 3 as model compound for development of tracer molecule in positron emission tomography (PET) was synthesized by fluorination reaction of methoxytritylated pyrimidine derivative using diethylaminosulfur trifluoride (DAST). Conversion of one hydroxyl group to methoxytritylated, fluorinated, mesylated and acetylated pyrimidine derivatives (2, 3, 5–7 and 9) afforded a mixture of Z- and E-isomers in which Z-isomers were predominant. Conformational study of 1, and its fluorinated structural congeners 3 and 4 by the use of NOE experiments revealed predominant conformation of compounds where vinyl H-10 proton is spatially close to N-1 methyl and H-30b methylene protons and on the other hand H-30a methylene protons are close to C-5 methyl protons. The stereostructure of 1, 3-dihydroxyisobutenyl N- methyl thymine 1 was unambiguously confirmed by X- ray crystal structure analysis.
Izvorni jezik
Engleski
Znanstvena područja
Kemija
POVEZANOST RADA
Projekti:
MZOS-119-1193079-3069 - Novi organski i koordinacijski spojevi - sinteza i suodnos struktura-svojstvo (Kaitner, Branko, MZOS ) ( CroRIS)
MZOS-125-0982464-2925 - Razvoj i primjena novih molekula u pozitron-emisijskoj tomografiji (PET) (Raić-Malić, Silvana, MZOS ) ( CroRIS)
Ustanove:
Tekstilno-tehnološki fakultet, Zagreb,
Prirodoslovno-matematički fakultet, Zagreb,
Fakultet kemijskog inženjerstva i tehnologije, Zagreb
Profili:
Svjetlana Krištafor
(autor)
Silvana Raić-Malić
(autor)
Andrijana Meščić Macan
(autor)
Silvija Maračić
(autor)
Mario Cetina
(autor)
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus
Uključenost u ostale bibliografske baze podataka::
- CA Search (Chemical Abstracts)