An Approach to the Welwistatin Core via a Diazoketone Rearrangement-Ring Expansion Strategy.
Lam, Shuk Mei; Wong, Wing-Tak; Chiu, Pauline; Organic letters 19 (2017) 4468–4471; doi:10.1021/acs.orglett.7b01988

data_1547061
_publ_section_title
;
 An Approach to the Welwistatin Core via a Diazoketone Rearrangement-Ring
 Expansion Strategy.
;
_journal_issue                   17
_journal_name_full               'Organic letters'
_journal_page_first              4468
_journal_page_last               4471
_journal_paper_doi               10.1021/acs.orglett.7b01988
_journal_volume                  19
_journal_year                    2017
_chemical_formula_moiety         'C16 H16 O4'
_chemical_formula_sum            'C16 H16 O4'
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_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
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_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Bruker SMART 1000 CCD'
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_refine_ls_extinction_method     none
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_refine_ls_number_restraints     0
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_refine_ls_R_factor_all          0.0446
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_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
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'w=1/[\s^2^(Fo^2^)+(0.0482P)^2^+0.2751P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
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_reflns_threshold_expression     'I > 2\s(I)'
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