Total synthesis of oidiodendrolides and related norditerpene dilactones from a common precursor: metabolites CJ-14,445, LL-Z1271gamma, oidiolactones A, B, C, and D, and nagilactone F.
Hanessian, Stephen; Boyer, Nicolas; Reddy, Gone Jayapal; Deschênes-Simard, Benoît; Organic letters 11 (2009) 4640–4643; doi:10.1021/ol901896c

data_1504185
_publ_section_title
;
 Total synthesis of oidiodendrolides and related norditerpene dilactones
 from a common precursor: metabolites CJ-14,445, LL-Z1271gamma,
 oidiolactones A, B, C, and D, and nagilactone F.
;
_journal_issue                   20
_journal_name_full               'Organic letters'
_journal_page_first              4640
_journal_page_last               4643
_journal_paper_doi               10.1021/ol901896c
_journal_volume                  11
_journal_year                    2009
_chemical_absolute_configuration rmad
_chemical_compound_source        'Synthesized by the authors. See text'
_chemical_formula_moiety         'C16 H18 O4'
_chemical_formula_sum            'C16 H18 O4'
_chemical_formula_weight         274.30
_space_group_IT_number           5
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'C 2y'
_symmetry_space_group_name_H-M   'C 1 2 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90
_cell_angle_beta                 129.390(1)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   18.1933(5)
_cell_length_b                   7.7110(2)
_cell_length_c                   12.4502(3)
_cell_measurement_reflns_used    5974
_cell_measurement_temperature    150
_cell_measurement_theta_max      71.81
_cell_measurement_theta_min      4.60
_cell_volume                     1349.87(6)
_computing_cell_refinement       'SAINT V7.34A(Bruker AXS, 2007)'
_computing_data_collection       'APEX2  (Bruker AXS, 2008)'
_computing_data_reduction        'SAINT V7.34A(Bruker AXS, 2007)'
_computing_molecular_graphics    'SHELXTL v6.12 (Bruker AXS, 2001)'
_computing_publication_material  'UdMX (Maris, 2004)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      150
_diffrn_detector_area_resol_mean 5.5
_diffrn_measured_fraction_theta_full 0.987
_diffrn_measured_fraction_theta_max 0.987
_diffrn_measurement_device_type  'Bruker Smart 6000'
_diffrn_measurement_method       \w/2\q
_diffrn_radiation_monochromator  'Montel 200 optics'
_diffrn_radiation_source         'Rotating Anode'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.034
_diffrn_reflns_av_sigmaI/netI    0.0289
_diffrn_reflns_limit_h_max       22
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            8796
_diffrn_reflns_theta_full        72.33
_diffrn_reflns_theta_max         72.33
_diffrn_reflns_theta_min         4.60
_exptl_absorpt_coefficient_mu    0.790
_exptl_absorpt_correction_T_max  0.9240
_exptl_absorpt_correction_T_min  0.8058
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Sadabs (Sheldrick, 2007)'
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.350
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             584
_exptl_crystal_size_max          0.18
_exptl_crystal_size_mid          0.11
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.185
_refine_diff_density_min         -0.258
_refine_diff_density_rms         0.055
_refine_ls_abs_structure_details 'Flack H D (1983), 1079 Friedel Pairs'
_refine_ls_abs_structure_Flack   0.21(15)
_refine_ls_extinction_coef       0.0072(5)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.045
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     184
_refine_ls_number_reflns         2520
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.045
_refine_ls_R_factor_all          0.0334
_refine_ls_R_factor_gt           0.0325
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0532P)^2^+0.2544P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0812
_refine_ls_wR_factor_ref         0.0819
_reflns_number_gt                2451
_reflns_number_total             2520
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            ol901896c_si_002.cif
_cod_data_source_block           bent15
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from
2011-04-26.

'_geom_bond_publ_flag' value 'Y' changed to 'y'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26 (23
times).

'_geom_angle_publ_flag' value 'Y' changed to 'y' according
to /home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary
named 'cif_core.dic' version 2.4.2 from 2011-04-26 (38
times).

'_geom_torsion_publ_flag' value 'Y' changed to 'y' according
to /home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary
named 'cif_core.dic' version 2.4.2 from 2011-04-26 (57 times).

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_cell_volume        1349.86(6)
_cod_original_sg_symbol_H-M      C2
_cod_database_code               1504185