4-(1,2,3-Thiadiazol-4-yl)benzaldehyde → 6-[2-(3-Chloro-4-methoxy-phenyl)-ethyl]-6-cyclopentyl-4-hydroxy-3-(4-[1,2,3]thiadiazol-4-yl-benzyl)-5,6-dihydro-pyran-2-one

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The title compound was prepared by coupling the 6-[2-(3-Chloro-4-methoxy-phenyl)-ethyl]-6-cyclopentyl-dihydro-pyran-2,4-dione to 4-[1,2,3]thiadiazol-4-yl-benzaldehyde using the Me2NHBH3 method described in the synthesis of Example B(31). 1H NMR (DMSO-d6): d 1.36-1.71 (br m, 8H), 1.92 (m, 2H), 2.37 (m, 1H), 2.56 (m, 3H), 2.84 (d, 1H, J=17.5 Hz), 3.60 (d, 1H, J=14.3 Hz), 3.71 (d, 1H, J=14.3 Hz), 3.79 (s, 3H), 6.96 (s, 2H), 7.19 (s, 1H), 7.41 (d, 2H, J=8.1 Hz), 8.08 (d, 2H, J=8.3 Hz), 9.59 (s, 1H), 11.01 (s, 1H) Anal. Calcd. For C28H29N2O4ClS.0.75H2O: C, 62.44; H, 5.71; N, 5.20. Found: C, 62.43; H, 5.58; N, 5.30.

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