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Chemical structure of VAS3947 [3-benzyl-7-(2-oxazolyl)thio-1,2,3-triazolo[4,5-d]pyrimidine]. VAS3947 was characterized by NMR and mass spectrometry [1H nmr (DMSO-D6): δ 5.90 (s, 2H, CH2), 7.3–7.4 (m, 5H, Ph), 7.6 (s, 1H, Ar), 8.55 (s, 1H, Ar), 8.95 (s, 1H, H-5). ms: (+APCI) m/z 311 [M+H]+).
