Total synthesis of (+)-condylocarpine, (+)-isocondylocarpine, and (+)-tubotaiwine.
Martin, Connor L.; Nakamura, Seiichi; Otte, Ralf; Overman, Larry E.; Organic letters 13 (2011) 138–141; doi:10.1021/ol102709s

data_1501893
_publ_section_title
;
 Total synthesis of (+)-condylocarpine, (+)-isocondylocarpine, and
 (+)-tubotaiwine.
;
_journal_issue                   1
_journal_name_full               'Organic letters'
_journal_page_first              138
_journal_page_last               141
_journal_paper_doi               10.1021/ol102709s
_journal_volume                  13
_journal_year                    2011
_chemical_formula_sum            'C18 H18 N2 O3'
_chemical_formula_weight         310.34
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXTL
_cell_angle_alpha                90.00
_cell_angle_beta                 102.8194(5)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.3797(4)
_cell_length_b                   14.5146(7)
_cell_length_c                   12.1909(6)
_cell_measurement_reflns_used    9934
_cell_measurement_temperature    93(2)
_cell_measurement_theta_max      28.62
_cell_measurement_theta_min      2.21
_cell_volume                     1445.80(12)
_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      93(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.940
_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  0.0143
_diffrn_reflns_av_sigmaI/netI    0.0111
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       19
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            17215
_diffrn_reflns_theta_full        25.50
_diffrn_reflns_theta_max         28.96
_diffrn_reflns_theta_min         2.21
_exptl_absorpt_coefficient_mu    0.098
_exptl_absorpt_correction_T_max  0.9753
_exptl_absorpt_correction_T_min  0.9717
_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details   'Bruker SADABS'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.426
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             656
_exptl_crystal_size_max          0.29
_exptl_crystal_size_mid          0.27
_exptl_crystal_size_min          0.26
_refine_diff_density_max         0.601
_refine_diff_density_min         -0.637
_refine_diff_density_rms         0.051
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.031
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     209
_refine_ls_number_reflns         3606
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.031
_refine_ls_R_factor_all          0.0437
_refine_ls_R_factor_gt           0.0408
_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^)+(0.0607P)^2^+0.7590P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1090
_refine_ls_wR_factor_ref         0.1121
_reflns_number_gt                3308
_reflns_number_total             3606
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol102709s_si_003.cif
_cod_data_source_block           leo234
_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 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 

The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'none' was changed to '?' - the
value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               1501893