3-Chloro-4-hydroxybenzaldehyde → 3-Chloro-4-(1-(5-phenyl-1,3,4-oxadiazole-2-carbonyl)azetidin-3-yloxy)benzaldehyde

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Using a similar protocol as described in Example 53C employing 53B (1.0 g, 3.10 mmol) and 3-chloro-4-hydroxybenzaldehyde (0.50 g, 3.19 mmol) as starting materials afforded 0.54 g (45%) of 57A as a solid. 1H NMR (500 MHz, CD3OD): δ 4.34 (m, 1H), 4.77 (m, 2H), 5.25 (m, 1H), 5.36 (m, 1H), 7.05 (d, 1H), 7.62 (m, 3H), 7.7-8.1 (m, 2H), 8.14 (d, 2H), 9.87 (s, 1H), MS (APCI+) m/z 384 [M+H]+.

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