Ethyl 3-[6-(4-meth­oxy­benzene­sulfon­amido)-2H-indazol-2-yl]propano­ate monohydrate

In the title compound, C₁₉H₂₁N₃O₅S·H₂O, the central indazole system is essentially planar (r.m.s. deviation = 0.012 Å), while both the benzene ring and the mean plane defined by the non-H atoms of the ethyl propionic ester unit (r.m.s. deviation = 0.087 Å) are nearly perpendicular to the indazole plane, as indicated by the dihedral angles of 82.45 (8) and 75.62 (8)°, respectively. Consequently, the mol­ecule adopts a U-shaped geometry. In the crystal, the water mol­ecule, which is linked to the indazole system by a strong O—H...N hydrogen bond, is also involved in two additional N—H...O and O—H...O inter­actions, which link the organic mol­ecules into chains along the b-axis direction.

(1S,3R,8R,9S,11R)-2,2,10,10-Tetra­chloro-3,7,7,11-tetra­methyl­tetra­cyclo­[6.5.0.0^1,3.0^9,11]trideca­ne

The title compound, C₁₇H₂₄Cl₄, was synthesized from β-himachalene (3,5,5,9-tetra­methyl-2,4a,5,6,7,8-hexa­hydro-1H-benzocyclo­heptene), which was isolated from the essential oil of the Atlas cedar (Cedrus Atlantica). The mol­ecule is built up from fused six- and seven-membered rings and two three-membered rings from the reaction of β-himachalene with dichloro­carbene. The six-membered ring shows a chair conformation, whereas the seven-membered ring displays a boat conformation.