- Regioselective Synthesis of 1-Sulfanyl- and 1-Selanylindolizines
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We describe herein a new approach to prepare unprecedented bioactive indolizine motifs decorated with organosulfur and organoselenium groups. A total of 12 1-sulfanylindolizines and 2 1-selanylindolizines were prepared in excellent yields by an intramolecular annulation of easily prepared chalcogen-containing pyridinium salts. The reaction is fast (1 h at 70 °C or 5 min under sonication) and transition-metal-free, using glycerol as a green solvent.
- Penteado, Filipe,Gomes, Caroline S.,Perin, Gelson,Garcia, Cleisson S.,Bortolatto, Cristiani F.,Brüning, César A.,Lenard?o, Eder J.
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p. 7189 - 7198
(2019/06/14)
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- Substitution of aqua ligands from cis-platinum(II) complexes bearing 2-(phenylthiomethyl)pyridine spectator ligands
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Cis-Pt(II) complexes, namely [Pt{2-(phenylthiomethyl)pyridine}(H2O)2](CF3SO3)2Pt(pySPh), [Pt{2-(4-tert-butylphenylthiomethyl)pyridine}(H2O)2](CF3SO3/s
- Mthiyane, Wakhiwe M.,Mambanda, Allen,Jaganyi, Deogratius
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p. 739 - 751
(2017/09/25)
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- IMDOLIZINE DERIVATIVES AS LIGANDS OF THE CRTH2 RECEPTOR
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Compounds of formula (I) are CRTH2 antagonists, useful in the treatment of, for example, asthma, chronic obstructive pulmonary disease, rhinitis, allergic airway syndrome, and allergic rhinobronchitis. Formula (I) wherein R1, R2. R3 and R4 each independently are hydrogen, C1-C6alkyl, fully or partially fluorinated C1-C6alkyl, halo, -S(O)nR10, -SO2N(R10)2, -N(R10)2, -C(O)N(R10)2, -NR10C(O)R9, -CO2R10, -C(O)R9, -NO2, -CN or -OR11; wherein each R9 is independently C1-C6alkyl, aryl, heteroaryl; R10 is independently hydrogen, C1-C6alkyl, aryl, or heteroaryl; R11 is hydrogen, C1-C6alkyl, fully or partially fluorinated C1-C6alkyl or a group -SO2R10 ; n is 0, 1 or 2; R5 is C1-C6alkyl, fully or partially fluorinated C1-C6alkyl, C1-C6alkenyl, C1-C6alkynyl, optionally substituted aryl, or optionally substituted heteroaryl; R6 is hydrogen, C1-C6alkyl or fully or partially fluorinated C1-C6alkyl ; R7 and R8 are independently hydrogen or C1-C6alkyl, or R7 and R8 together with the atom to which they are attached form a cycloalkyl group; and X is -CHR6-, -S(O)n-, -C(O)-, -NR6SO2- or -SO2NR6- wherein n is 0, 1 or 2.
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Page/Page column 32
(2008/06/13)
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- 2-pyridine Derivatives: New Antiinflammatory Agents
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2-pyridine derivatives (1a-e) inhibited the dermal reverse passive Arthus reaction (RPAR) in the rat.In the same model, indomethacin was inactive, and hydrocortisone was active.Compounds 1a-d also significantly reduced exudate volume and white blood cell accumulation in the pleural RPAR.This pattern of activity was similar to that of hydrocortisone and different from that of indomethacin.
- Haviv, Fortuna,DeNet, Robert W.,Michaels, Raymond J.,Ratajczyk, James D.,Carter, George W.,Young, Patrick R.
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p. 218 - 222
(2007/10/02)
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