Cytosine-containing hybrid dipeptides: <i>N</i>-[2-(4-amino-2-oxo-1,2-dihydropyrimidin-1-yl)propionyl]-<small>L</small>-phenylalanine <i>N</i>-[2-(4-amino-2-oxo-1,2-dihydropyrimidin-1-yl)propionyl]-<small>L</small>-serine monohydrate and <i>N</i>-[2-(4-amino-2-oxo-1,2-dihydropyrimidin-1-yl)propionyl]-<small>L</small>-lysine
Doi, Mitsunobu; Nakamoto, Yasuhiko; Asano, Akiko; Acta Crystallographica Section C 61 (2005) o577–o582; doi:10.1107/S0108270105026259

data_2015151
_publ_section_title
;Cytosine-containing hybrid dipeptides:
 <i>N</i>-[2-(4-amino-2-oxo-1,2-dihydropyrimidin-1-yl)propionyl]-<small>L</small>-phenylalanine
 <i>N</i>-[2-(4-amino-2-oxo-1,2-dihydropyrimidin-1-yl)propionyl]-<small>L</small>-serine
 monohydrate and
 <i>N</i>-[2-(4-amino-2-oxo-1,2-dihydropyrimidin-1-yl)propionyl]-<small>L</small>-lysine
;
_journal_coeditor_code           GG1264
_journal_issue                   10
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              o577
_journal_page_last               o582
_journal_paper_doi               10.1107/S0108270105026259
_journal_volume                  61
_journal_year                    2005
_chemical_formula_iupac          'C16 H18 N4 O4'
_chemical_formula_moiety         'C16 H18 N4 O4'
_chemical_formula_sum            'C16 H18 N4 O4'
_chemical_formula_weight         330.34
_chemical_name_common            (I)
_chemical_name_systematic
;
N-[2-(4-amino-2-oxo-1,2-dihydropyrimidin-1-yl)propionyl]-L-phenylalanine
;
_space_group_IT_number           1
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  'P 1'
_symmetry_space_group_name_H-M   'P 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                92.079(2)
_cell_angle_beta                 95.775(2)
_cell_angle_gamma                95.245(2)
_cell_formula_units_Z            4
_cell_length_a                   9.3587(12)
_cell_length_b                   10.3445(13)
_cell_length_c                   16.925(2)
_cell_measurement_reflns_used    2719
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      27.88
_cell_measurement_theta_min      2.20
_cell_volume                     1621.7(3)
_computing_cell_refinement       SMART
_computing_data_collection       'SMART (Bruker, 1998)'
_computing_data_reduction        'SAINT-Plus (Bruker, 1998)'
_computing_molecular_graphics    'PLATON (Spek, 2001)'
_computing_publication_material  'MERCURY (Bruno et al., 2002)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXD (Sheldrick, 1990b)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 8.366
_diffrn_measured_fraction_theta_full .980
_diffrn_measured_fraction_theta_max .980
_diffrn_measurement_device_type  'Bruker SMART APEX'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'MacSciences M18XCE rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0250
_diffrn_reflns_av_sigmaI/netI    0.0565
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            8913
_diffrn_reflns_theta_full        25.68
_diffrn_reflns_theta_max         25.68
_diffrn_reflns_theta_min         1.98
_diffrn_standards_decay_%        0.0
_diffrn_standards_interval_count 10152
_diffrn_standards_number         68
_exptl_absorpt_coefficient_mu    0.100
_exptl_absorpt_correction_T_max  0.9980
_exptl_absorpt_correction_T_min  0.83163
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 1996)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.353
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             696
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.04
_refine_diff_density_max         .331
_refine_diff_density_min         -.313
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.130
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     896
_refine_ls_number_reflns         6059
_refine_ls_number_restraints     180
_refine_ls_restrained_S_all      1.113
_refine_ls_R_factor_all          0.0670
_refine_ls_R_factor_gt           0.0641
_refine_ls_shift/su_max          0.011
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0753P)^2^+0.9676P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1478
_refine_ls_wR_factor_ref         0.1497
_reflns_number_gt                5788
_reflns_number_total             6059
_reflns_threshold_expression     I>\2s(I)
_cod_data_source_file            gg1264.cif
_cod_data_source_block           I
_cod_original_cell_volume        1621.7(4)
_cod_database_code               2015151
_cod_database_fobs_code          2015151