(3aR*,4S*,5S*,7aR*)-4-Nitrobenzoic Acid 5-Methyl-1,3,3a,4,5,7a-hexahydroisobenzofuran-4-yl Ester

The crystal structure determination of the title compound, C₁₆H₁₇NO₅, establishes the relative stereochemistry. The molecule contains a furanyl ring with a twist conformation fused to an unsaturated six-membered ring with a twist-chair conformation. There are weak inter­molecular C—H...O interactions, with distances C...O(1 − x,  + y,  − z) 3.254 (2) and H...O(1 − x,  + y,  − z) 2.41 Å.

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