rac-(1S*,4aS*,8aS*)-4a-Hy­droxy-2-methyl­perhydro­spiro­[isoquinoline-4,1′-cyclo­hexa­n]-2′-one

In the title compound, C₁₅H₂₅NO₂, all three six-membered rings adopt chair conformations. The cyclo­hexane and piperidine rings within the perhydro­isoquinoline are trans–trans fused. The N atom has a trigonal–pyramidal geometry (the sum of the bond angles is 328.0°). The methyl substituent occupies the sterically preferrable equatorial position. In the crystal, mol­ecules form infinite [100] chains via O—H...N hydrogen bonds.