title: Capecitabine from X-ray powder synchrotron data.
abstract: In the title compound [systematic name 5-de-oxy-5-fluoro-N-(pent-yloxycarbon-yl)cytidine], C(15)H(22)FN(3)O(6), the pentyl chain is disordered over two positions with refined occupancies of 0.53 (5) and 0.47 (5). The furan ring assumes an envelope conformation. In the crystal, inter-molecular N-H⋯O hydrogen bonds link the mol-ecules into chains propagating along the b axis. The crystal packing exhibits electrostatic inter-actions between the 5-fluoro-pyrimidin-2(1H)-one fragments of neighbouring mol-ecules as indicated by short O⋯C [2.875 (3) and 2.961 (3) Å] and F⋯C [2.886 (3) Å] contacts.
authors.forename: Jan
authors.initials: J
authors.lastname: Rohlicek
authors.forename: Michal
authors.initials: M
authors.lastname: Husak
authors.forename: Ales
authors.initials: A
authors.lastname: Gavenda
authors.forename: Alexandr
authors.initials: A
authors.lastname: Jegorov
authors.forename: Bohumil
authors.initials: B
authors.lastname: Kratochvil
authors.forename: Andy
authors.initials: A
authors.lastname: Fitch