... Hz), 3.27 (s, 3H), 4.16 (dq, lH, J = 6.1, 6.4 Hz), 4.35 (d, lH, J = 6.1 Hz ... The combined organic layers were dried over anhydrous NazS04 and then evaporated under reduced pressure to ... on microfiche, immediately follows this article in the microfilm version of the journal, and can ...