Annotinolides A-C, Three Lycopodane-Derived 8,5-Lactones with Polycyclic Skeletons from Lycopodium annotinum.
Tang, Yu; Xiong, Juan; Zhang, Jing-Jing; Wang, Wei; Zhang, Hai-Yan; Hu, Jin-Feng; Organic letters 18 (2016) 4376–4379; doi:10.1021/acs.orglett.6b02132

data_1555705
_publ_section_title
;
 Annotinolides A-C, Three Lycopodane-Derived 8,5-Lactones with Polycyclic
 Skeletons from Lycopodium annotinum.
;
_journal_issue                   17
_journal_name_full               'Organic letters'
_journal_page_first              4376
_journal_page_last               4379
_journal_paper_doi               10.1021/acs.orglett.6b02132
_journal_volume                  18
_journal_year                    2016
_chemical_absolute_configuration rmad
_chemical_formula_moiety         'C16 H19 N O4'
_chemical_formula_sum            'C16 H19 N O4'
_chemical_formula_weight         289.32
_space_group_crystal_system      orthorhombic
_space_group_IT_number           19
_space_group_name_Hall           'P 2ac 2ab'
_space_group_name_H-M_alt        'P 21 21 21'
_atom_sites_solution_hydrogens   mixed
_atom_sites_solution_primary     direct
_audit_creation_date             2016-03-09
_audit_creation_method
;
Olex2 1.2
(compiled 2016.02.19 svn.r3266 for OlexSys, GUI svn.r5155)
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   7.8847(4)
_cell_length_b                   12.7310(6)
_cell_length_c                   13.5189(7)
_cell_measurement_reflns_used    4531
_cell_measurement_temperature    296
_cell_measurement_theta_max      68.332
_cell_measurement_theta_min      4.77
_cell_volume                     1357.03(12)
_computing_cell_refinement       'SAINT v7.68A (Bruker, 2009)'
_computing_data_reduction        'SAINT v7.68A (Bruker, 2009)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'ShelXS (Sheldrick, 2008)'
_diffrn_ambient_temperature      296
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.988
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0378
_diffrn_reflns_av_unetI/netI     0.0326
_diffrn_reflns_Laue_measured_fraction_full 0.999
_diffrn_reflns_Laue_measured_fraction_max 0.988
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            9131
_diffrn_reflns_point_group_measured_fraction_full 0.978
_diffrn_reflns_point_group_measured_fraction_max 0.962
_diffrn_reflns_theta_full        67.679
_diffrn_reflns_theta_max         69.137
_diffrn_reflns_theta_min         4.771
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.837
_exptl_absorpt_correction_T_max  0.7532
_exptl_absorpt_correction_T_min  0.5647
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2008/1 (Bruker,2008) was used for absorption correction.
wR2(int) was 0.1076 before and 0.0569 after correction.
The Ratio of minimum to maximum transmission is 0.7497.
The \l/2 correction factor is 0.0015.
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.416
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             616
_exptl_crystal_size_max          0.2
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.1
_refine_diff_density_max         0.144
_refine_diff_density_min         -0.197
_refine_diff_density_rms         0.036
_refine_ls_abs_structure_details
;
 Flack x determined using 910 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.05(10)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.039
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     195
_refine_ls_number_reflns         2440
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.039
_refine_ls_R_factor_all          0.0340
_refine_ls_R_factor_gt           0.0327
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0563P)^2^+0.1066P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0875
_refine_ls_wR_factor_ref         0.0885
_reflns_Friedel_coverage         0.671
_reflns_Friedel_fraction_full    0.948
_reflns_Friedel_fraction_max     0.925
_reflns_number_gt                2337
_reflns_number_total             2440
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            ol6b02132_si_004.cif
_cod_data_source_block           cu_dm16105_0m
_cod_database_code               1555705
_shelx_estimated_absorpt_t_max   0.921
_shelx_estimated_absorpt_t_min   0.850
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All C(H,H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Ternary CH refined with riding coordinates:
 C4(H4), C5(H5), C7(H7)
2.b Secondary CH2 refined with riding coordinates:
 C1(H1A,H1B), C2(H2A,H2B), C3(H3A,H3B), C6(H6A,H6B), C14(H14A,H14B)
2.c Aromatic/amide H refined with riding coordinates:
 C10(H10), C11(H11)
2.d Idealised Me refined as rotating group:
 C16(H16A,H16B,H16C)
;
_shelx_res_checksum              41634
_shelx_hkl_checksum              94007
_shelx_shelxl_version_number     2014/7
_olex2_submission_special_instructions 'No special instructions were received'