Total synthesis of all (-)-Agelastatin alkaloids.
Movassaghi, Mohammad; Siegel, Dustin S.; Han, Sunkyu; Chemical science (Royal Society of Chemistry : 2010) 1 (2010) 561–566; doi:10.1039/c0sc00351d

data_1515845
_publ_section_title
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 Total synthesis of all (-)-Agelastatin alkaloids.
;
_journal_issue                   5
_journal_name_full
'Chemical science (Royal Society of Chemistry : 2010)'
_journal_page_first              561
_journal_page_last               566
_journal_paper_doi               10.1039/c0sc00351d
_journal_volume                  1
_journal_year                    2010
_chemical_formula_sum            'C14 H19 Br N4 O4'
_chemical_formula_weight         387.24
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.3843(11)
_cell_length_b                   10.7461(11)
_cell_length_c                   14.0947(15)
_cell_measurement_reflns_used    9993
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      30.76
_cell_measurement_theta_min      2.38
_cell_volume                     1572.8(3)
_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      100(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0524
_diffrn_reflns_av_sigmaI/netI    0.0403
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            31959
_diffrn_reflns_theta_full        29.56
_diffrn_reflns_theta_max         29.56
_diffrn_reflns_theta_min         2.38
_exptl_absorpt_coefficient_mu    2.640
_exptl_absorpt_correction_T_max  0.6479
_exptl_absorpt_correction_T_min  0.3578
_exptl_absorpt_correction_type   none
_exptl_absorpt_process_details   'SADABS (Sheldrick, 2008)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.635
_exptl_crystal_density_meas      0
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             792
_exptl_crystal_size_max          0.49
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.18
_refine_diff_density_max         0.599
_refine_diff_density_min         -0.369
_refine_diff_density_rms         0.073
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.007(6)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.016
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     214
_refine_ls_number_reflns         4413
_refine_ls_number_restraints     197
_refine_ls_restrained_S_all      0.993
_refine_ls_R_factor_all          0.0328
_refine_ls_R_factor_gt           0.0277
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0343P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0625
_refine_ls_wR_factor_ref         0.0643
_reflns_number_gt                4052
_reflns_number_total             4413
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c0sc00351d.txt
_cod_data_source_block           10012
_cod_depositor_comments
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The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' 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      P2(1)2(1)2(1)
_cod_database_code               1515845