addenda and errata
(5R,6S,8S,9R,14R,15R,17R,18S,21S,24R,26S,27R)-5α-Chloro-16,24-cyclo-13,14-secoergost-2-ene-18,26-dioic acid-14:17,14:27-diepoxy-6β,13,20,22-tetrahydroxy-1,15-dioxo-γ-lactone δ-lactone methanol solvate monohydrate. Corrigendum
aHEJ Research Institute of Chemistry, International Center for Chemical Sciences, University of Karachi, Karachi 75270, Pakistan, and bX-ray Crystallography Unit, School of Physics, Universiti Sains Malaysia, 11800 USM, Penang, Malaysia
*Correspondence e-mail: anjumshazia@yahoo.com, hkfun@usm.my
Some errors in the paper by Choudhary, Yousuf, Atta-ur-Rahman, Anjum, Fun & Ali [Acta Cryst. (2005), E61, o3523–o3525] are corrected. In the Abstract, the text `The rigid molecule consists of eight fused rings involving three The spiro-fused γ-lactone rings are in half-chair and envelope conformations. The spiro-fused γ-lactone rings are fused to a cyclohexene ring, which is in a half-chair conformation.' is corrected to `The rigid molecule consists of eight fused rings involving two The spiro-fused rings D and E are in half-chair and envelope conformations. The spiro-fused γ-lactone rings are fused to a cyclohexene ring F, which is in a half-chair conformation.' In line 11 of the Comment, an atom label is corrected so that the text reads `(c) oxidation of the C18 methyl group'.