Truncated militarinone fragments identified by total chemical synthesis induce neurite outgrowth
Schmid, Fabian; Jessen, Henning J.; Burch, Patrick; Gademann, Karl; MedChemComm 4 (2013) 135–; doi:10.1039/c2md20181j

data_7112508
_publ_section_title
;
 Truncated militarinone fragments identified by total chemical synthesis
 induce neurite outgrowth
;
_journal_issue                   1
_journal_name_full               MedChemComm
_journal_page_first              135
_journal_paper_doi               10.1039/c2md20181j
_journal_volume                  4
_journal_year                    2013
_chemical_formula_moiety         'C20 H24 N2 O6'
_chemical_formula_sum            'C20 H24 N2 O6'
_chemical_formula_weight         388.42
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_cell_angle_alpha                90
_cell_angle_beta                 104.0880(10)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   12.3996(3)
_cell_length_b                   8.7715(2)
_cell_length_c                   18.6699(4)
_cell_measurement_reflns_used    8832
_cell_measurement_temperature    123
_cell_measurement_theta_max      36
_cell_measurement_theta_min      3
_cell_volume                     1969.52(8)
_computing_cell_refinement       'Apex2 (Bruker AXS, 2006)'
_computing_data_collection       'Apex2 (Bruker AXS, 2006)'
_computing_data_reduction        'Apex2 (Bruker AXS, 2006)'
_computing_molecular_graphics    'CAMERON (Watkin et al., 1996)'
_computing_publication_material  'CRYSTALS (Betteridge et al., 2003)'
_computing_structure_refinement  'CRYSTALS (Betteridge et al., 2003)'
_computing_structure_solution    'SIR92 (Altomare et al., 1994)'
_diffrn_ambient_temperature      123
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device       Area
_diffrn_measurement_device_type  'Bruker Kappa Apex2'
_diffrn_measurement_method       '\f & \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.059
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       31
_diffrn_reflns_limit_l_min       -31
_diffrn_reflns_number            55114
_diffrn_reflns_theta_full        36.364
_diffrn_reflns_theta_max         36.364
_diffrn_reflns_theta_min         2.249
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.097
_exptl_absorpt_correction_T_max  1.00
_exptl_absorpt_correction_T_min  0.99
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'DENZO/SCALEPACK (Otwinowski & Minor, 1997)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.310
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             824
_exptl_crystal_size_max          0.220
_exptl_crystal_size_mid          0.130
_exptl_crystal_size_min          0.030
_refine_diff_density_max         0.43
_refine_diff_density_min         -0.21
_refine_ls_extinction_method     None
_refine_ls_goodness_of_fit_ref   1.0758
_refine_ls_hydrogen_treatment    none
_refine_ls_matrix_type           full
_refine_ls_number_parameters     253
_refine_ls_number_reflns         4981
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.0841
_refine_ls_R_factor_gt           0.0430
_refine_ls_shift/su_max          0.0005192
_refine_ls_shift/su_mean         0.0000585
_refine_ls_structure_factor_coef F
_refine_ls_weighting_details
;
Method, part 1, Chebychev polynomial, (Watkin, 1994, Prince, 1982)
[weight] = 1.0/[A~0~*T~0~(x)+A~1~*T~1~(x) ... +A~n-1~]*T~n-1~(x)]
where A~i~ are the Chebychev coefficients listed below and x= Fcalc/Fmax
Method = Robust Weighting (Prince, 1982)
W = [weight] * [1-(deltaF/6*sigmaF)^2^]^2^
A~i~ are:
0.268 0.270 0.109
;
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.1019
_refine_ls_wR_factor_gt          0.0459
_refine_ls_wR_factor_ref         0.0438
_reflns_limit_h_max              20
_reflns_limit_h_min              -20
_reflns_limit_k_max              14
_reflns_limit_k_min              0
_reflns_limit_l_max              31
_reflns_limit_l_min              0
_reflns_number_gt                5508
_reflns_number_total             9575
_reflns_threshold_expression     I>2.0\s(I)
_oxford_diffrn_Wilson_B_factor   1.14
_oxford_diffrn_Wilson_scale      47.81
_oxford_refine_ls_r_factor_ref   0.0397
_oxford_refine_ls_scale          0.1584(2)
_oxford_reflns_number_all        9562
_oxford_reflns_threshold_expression_ref I>3.0\s(I)
_cod_data_source_file            c2md20181j.txt
_cod_data_source_block           1
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/usr/data/users/saulius/automatic-downloads/retrospective/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2281 2013-09-26 08:29:07Z andrius 
;
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               7112508