D-Gulonolactone as a synthon for L-noviose: first preparation of 4-O-demethyl-L-noviofuranose and related derivatives.
Jeselnik, Marjan; Leban, Ivan; Polanc, Slovenko; Kocevar, Marijan; Organic letters 5 (2003) 2651–2653; doi:10.1021/ol034796t

data_1507340
_publ_section_title
;
 D-Gulonolactone as a synthon for L-noviose: first preparation of
 4-O-demethyl-L-noviofuranose and related derivatives.
;
_journal_issue                   15
_journal_name_full               'Organic letters'
_journal_page_first              2651
_journal_page_last               2653
_journal_paper_doi               10.1021/ol034796t
_journal_volume                  5
_journal_year                    2003
_chemical_absolute_configuration syn
_chemical_formula_moiety         'C21 H24 O5'
_chemical_formula_sum            'C21 H24 O5'
_chemical_formula_weight         356.40
_chemical_name_systematic
;
Organic crystal MJ-630 K338
Methyl 2,3-O-(1-methylethylidene)-5,5-di-
C-phenyl-\a-L-lyxofuranoside (12).    
;
_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                   9.7120(5)
_cell_length_b                   10.3090(10)
_cell_length_c                   19.3600(15)
_cell_measurement_reflns_used    3222
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      29
_cell_measurement_theta_min      1
_cell_volume                     1938.3(3)
_computing_cell_refinement
;
DENZO and SCALEPACK (Otwinowski & Minor, 1997)
;
_computing_data_collection
;
COLLECT (Nonius, 1999)
;
_computing_data_reduction
;
DENZO and SCALEPACK (Otwinowski & Minor, 1997)
;
_computing_molecular_graphics
;
ORTEPII (Johnson, 1971), PLUTON (Spek, 1991), 
PLATON (Spek, 1998 and Farrugia, 2000), 
ORTEP-3 (Farrugia, 1999b)
;
_computing_publication_material
;
SHELXL-97 (Sheldrick, 1997), PARST (Nardelli, 1983 and 1995), 
WinGX (Farrugia, 1999a) 
;
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-86 (Sheldrick, 1986)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean 0.055
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'Nonius KappaCCD diffractometer'
_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  0.0172
_diffrn_reflns_av_sigmaI/netI    0.0262
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            5180
_diffrn_reflns_theta_full        29.13
_diffrn_reflns_theta_max         29.13
_diffrn_reflns_theta_min         2.24
_exptl_absorpt_coefficient_mu    0.086
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.221
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             760
_exptl_crystal_size_max          0.27
_exptl_crystal_size_mid          0.26
_exptl_crystal_size_min          0.18
_refine_diff_density_max         0.213
_refine_diff_density_min         -0.169
_refine_diff_density_rms         0.043
_refine_ls_extinction_coef       0.020(8)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.119
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     237
_refine_ls_number_reflns         2931
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.119
_refine_ls_R_factor_all          0.0485
_refine_ls_R_factor_gt           0.0371
_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^)+(0.0762P)^2^+0.1717P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1011
_refine_ls_wR_factor_ref         0.1259
_reflns_number_gt                2545
_reflns_number_total             2931
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            ol034796tsi20030509_061008.cif
_cod_data_source_block           k338
_cod_depositor_comments
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The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' 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 
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_cod_database_code               1507340