Studies toward Total Synthesis of Divergolides C and D
Rasapalli, Sivappa; Jarugumilli, Gopalakrishna; Yarrapothu, Gangadhara Rao; Golen, James A.; Rheingold, Arnold L.; Organic Letters 15 (2013) 1736–; doi:10.1021/ol400528g

data_1511912
_publ_section_title
;
 Studies toward Total Synthesis of Divergolides C and D
;
_journal_issue                   7
_journal_name_full               'Organic Letters'
_journal_page_first              1736
_journal_paper_doi               10.1021/ol400528g
_journal_volume                  15
_journal_year                    2013
_chemical_formula_moiety         'C20 H25 N O6'
_chemical_formula_sum            'C20 H25 N O6'
_chemical_formula_weight         375.41
_chemical_name_common            '? Ansa Naphthaldehyde'
_chemical_name_systematic
;tert-butyl 5-formyl-1,4,6-trimethoxy-7-methylnaphthalen-2-ylcarbamate 
 ? 
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                86.326(3)
_cell_angle_beta                 68.916(3)
_cell_angle_gamma                65.816(3)
_cell_formula_units_Z            2
_cell_length_a                   9.8884(10)
_cell_length_b                   9.9615(10)
_cell_length_c                   11.2817(10)
_cell_measurement_reflns_used    6000
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      25.25
_cell_measurement_theta_min      2.49
_cell_volume                     941.35(16)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'Bruker CMOS area detector'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  'doubly curved mirrors'
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0358
_diffrn_reflns_av_sigmaI/netI    0.0291
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            17113
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.40
_diffrn_reflns_theta_min         2.43
_exptl_absorpt_coefficient_mu    0.098
_exptl_absorpt_correction_T_max  0.9903
_exptl_absorpt_correction_T_min  0.9619
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   sadabs
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.324
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             400
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.399
_refine_diff_density_min         -0.289
_refine_diff_density_rms         0.045
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.010
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     255
_refine_ls_number_reflns         3431
_refine_ls_number_restraints     13
_refine_ls_restrained_S_all      1.175
_refine_ls_R_factor_all          0.0679
_refine_ls_R_factor_gt           0.0452
_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^)+(0.0581P)^2^+0.4940P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1070
_refine_ls_wR_factor_ref         0.1199
_reflns_number_gt                2574
_reflns_number_total             3431
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol400528g_si_002.cif
_cod_data_source_block           umd101_0m
_cod_depositor_comments
;
The following automatic conversions were performed:

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

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               1511912