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[Contents scheme]

Acta Cryst. (2013). E69, o1601
[ doi:10.1107/S1600536813026111 ]

(1S,1'S,2'R,4a'S,9a'S,9b'R)-1'-Acet­yloxy-2,4'-dioxo-2',4',4a',7',8',9',9a',9b'-octa­hydro-1'H,2H-spiro­[ace­naphthyl­ene-1,5'-pyrano[4,3-a]pyrrolizin]-2'-ylmethyl acetate

S. Santhiya, J. Naga Siva Rao, R. Raghunathan, N. Latha and S. Lakshmi


Key indicators

checkCIF/PLATON results

No syntax errors found




Alert level C PLAT029_ALERT_3_C _diffrn_measured_fraction_theta_full Low ....... 0.962 PLAT089_ALERT_3_C Poor Data / Parameter Ratio (Zmax < 18) ..... 6.41 PLAT193_ALERT_1_C Cell and Diffraction Temperatures differ by .... 2 Deg PLAT910_ALERT_3_C Missing # of FCF Reflections Below Th(Min) ..... 1 PLAT911_ALERT_3_C Missing # FCF Refl Between THmin & STh/L= 0.597 83
Alert level G PLAT002_ALERT_2_G Number of Distance or Angle Restraints on AtSite 14 PLAT003_ALERT_2_G Number of Uiso or Uij Restrained non-H Atoms ... 12 PLAT005_ALERT_5_G No _iucr_refine_instructions_details in the CIF ? Do ! PLAT200_ALERT_1_G Check the Reported _diffrn_ambient_temperature 293 K PLAT242_ALERT_2_G Check Low Ueq as Compared to Neighbors for C23 PLAT301_ALERT_3_G Note: Main Residue Disorder ................... 18 % PLAT779_ALERT_4_G Suspect or Irrelevant (Bond) Angle in CIF .... # 101 C23 -O5 -C23' 1.555 1.555 1.555 14.10 Deg. PLAT779_ALERT_4_G Suspect or Irrelevant (Bond) Angle in CIF .... # 104 C25' -O4 -C25 1.555 1.555 1.555 14.20 Deg. PLAT791_ALERT_4_G Note: The Model has Chirality at C12 (Verify) S PLAT791_ALERT_4_G Note: The Model has Chirality at C16 (Verify) S PLAT791_ALERT_4_G Note: The Model has Chirality at C17 (Verify) R PLAT791_ALERT_4_G Note: The Model has Chirality at C18 (Verify) S PLAT791_ALERT_4_G Note: The Model has Chirality at C20 (Verify) R PLAT791_ALERT_4_G Note: The Model has Chirality at C21 (Verify) S PLAT811_ALERT_5_G No ADDSYM Analysis: Too Many Excluded Atoms .... ! Info PLAT860_ALERT_3_G Note: Number of Least-Squares Restraints ....... 138 PLAT909_ALERT_3_G Percentage of Observed Data at Theta(Max) still 32 %
0 ALERT level A = Most likely a serious problem - resolve or explain 0 ALERT level B = A potentially serious problem, consider carefully 5 ALERT level C = Check. Ensure it is not caused by an omission or oversight 17 ALERT level G = General information/check it is not something unexpected 2 ALERT type 1 CIF construction/syntax error, inconsistent or missing data 3 ALERT type 2 Indicator that the structure model may be wrong or deficient 7 ALERT type 3 Indicator that the structure quality may be low 8 ALERT type 4 Improvement, methodology, query or suggestion 2 ALERT type 5 Informative message, check

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