Practical syntheses of proposed and revised manzacidin B and their congeners.
Sankar, Kuppusamy; Rahman, Hasibur; Das, Pragna P.; Bhimireddy, Eswar; Sridhar, B.; Mohapatra, Debendra K.; Organic letters 14 (2012) 1082–1085; doi:10.1021/ol203466m

data_1503619
_publ_section_title
;
 Practical syntheses of proposed and revised manzacidin B and their
 congeners.
;
_journal_issue                   4
_journal_name_full               'Organic letters'
_journal_page_first              1082
_journal_page_last               1085
_journal_paper_doi               10.1021/ol203466m
_journal_volume                  14
_journal_year                    2012
_chemical_absolute_configuration syn
_chemical_formula_moiety         'C16 H25 Cl3 N2 O5'
_chemical_formula_sum            'C16 H25 Cl3 N2 O5'
_chemical_formula_weight         431.73
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 105.582(12)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   11.454(9)
_cell_length_b                   6.186(5)
_cell_length_c                   15.081(12)
_cell_measurement_reflns_used    2997
_cell_measurement_temperature    297(2)
_cell_measurement_theta_max      27.25
_cell_measurement_theta_min      2.62
_cell_volume                     1029.3(14)
_computing_cell_refinement       'SMART (Bruker, 2000)'
_computing_data_reduction        'SAINT (Bruker, 2000)'
_computing_molecular_graphics
'ORTEPIII (Burnett, M. N. & Johnson, C. K., 1996), PLATON (Spek, 2003)'
_computing_publication_material  'SHELXTL, PLATON (Spek, 2003)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      297(2)
_diffrn_measured_fraction_theta_full 0.901
_diffrn_measured_fraction_theta_max 0.901
_diffrn_measurement_device       'Bruker Smart APEX'
_diffrn_measurement_device_type  'CCD Area Detector'
_diffrn_measurement_method       'phi and Omega Scan'
_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  0.0418
_diffrn_reflns_av_sigmaI/netI    0.0711
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -2
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            2597
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.00
_exptl_absorpt_coefficient_mu    0.473
_exptl_absorpt_correction_T_max  0.95
_exptl_absorpt_correction_T_min  0.89
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'bruker sadabs'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.393
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             452
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.544
_refine_diff_density_min         -0.383
_refine_diff_density_rms         0.096
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.04(16)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.069
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     245
_refine_ls_number_reflns         2094
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.068
_refine_ls_R_factor_all          0.0778
_refine_ls_R_factor_gt           0.0710
_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^)+(0.1204P)^2^+0.4403P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1791
_refine_ls_wR_factor_ref         0.1875
_reflns_number_gt                1842
_reflns_number_total             2094
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            ol203466m_si_008.cif
_cod_data_source_block           shankar
_cod_depositor_comments
;
The following automatic conversions were performed:

'_chemical_absolute_configuration' value 'SYN' changed to 'syn'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.1 from
2010-06-29.

'_symmetry_cell_setting' value 'Monoclinic' changed to
'monoclinic' according to
/home/saulius/struct/CIF-dictionaries/cif_core.dic dictionary named
'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_cell_volume        1029.4(14)
_cod_original_sg_symbol_H-M      P2(1)
_cod_database_code               1503619