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Microsoft Word - Prachayasittikul_thiotetrahydropyridine_proof_060509.doc
sign, synthesis, and neurochemical evalua- tion of 2-Amino-5-(alkoxycarbonyl)- 3,4,5,6-tetrahydropyridines and 2-amino- 5-(alkoxycarbonyl)-1,4,5,6-tetrahydropyri- midines as M1 muscarinic receptor ago- nists [...] (logε): 202 (4.33), 243 (4.07); 1H-NMR (300 MHz, CDCl3): δ6.12 (d, J = 4.1 Hz, 1H, H-5), 5.95 (d, J = 4.1 Hz, 1H, H-6), 5.64 (d, J = 1.2 Hz, 1H, H-2), 3.95 (d, J = 1.2 Hz, 1H, H-3), 1.85 (s, 3H, NCOCH3), [...] 2.33 (s, 3H, OCOCH3), 1.59-1.90 (m, 1-Adm); 13C- NMR (75 MHz, CDCl3): δ142.5 (C-4), 126.4 (C-5), 84.2 (C-2), 77.1 (C-6), 44.7 (C-3). EIMS m/z (% relative intensity): 381(M+-18, 3), 320 (23), 135 (100) …