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Microsoft Word - Prachayasittikul_041208_proof.doc
methyl ester hydrochloride salt (5 mmol) in dry toluene (50 mL), triethylamine (5 mmol) was added then the reaction was stirred for further 0.5 h. Aromatic aldehyde (5 mmol) was added and heated up to [...] (methanol-d3) δ : 2.19 (s, 3H, 5-CH3), 3.07 (d, 2H, J = 13.6 Hz, CH2-C6H5), 3.37 (d, 1HC, J = 8 Hz), 3.65 (dd, 1HB, J = 8 Hz), 3.84 (s, 3H, CO2CH3), 4.86 (d, 1HA, J = 8 Hz), 5.9 (s, 1H, furyl), 6.31 (d, 1H [...] 35 (m, 10H, 2C6H5); IR υmax (nujol) 3369, 3326, 2355, 1772, 1703, 1685, 1682, 1458, 1450 cm-1; m/z (%) 407 (M+1, 42), 314[(M+1)-92, 100], 257(314-57, 12), 230 (314-84, 16).
5-amino-2-(5-methylfuran-2-yl)-6a-(2- …