organic compounds
Open access
In the title molecule, C12H13NO5S, the benzisothiazole ring system is essentially planar (r.m.s. deviation = 0.0169 Å) as is the –C—C(=O)—O—C– sequence of atoms in the vicinity of the acetate group (r.m.s. deviation = 0.0044 Å). The mean plane of these atoms forms a dihedral angle of 88.41 (7)° with the benzisothiazole ring system. In the crystal, weak C—HO hydrogen bonds involving methylene and methyne H atoms form R43(20) graph-set motifs.
organic compounds
Open access
The title compound, C9H12N2O2, is approximately planar (r.m.s. deviation = 0.13 Å for all non-H atoms). The carbonyl O atom is involved as acceptor in three different hydrogen-bond interactions. One N—HO and the C—HO(carbonyl) contact together with a weak C—HO(ethoxy) interaction link the molecules into sheets parallel to (102). These are further linked into a three-dimensional network via the remaining C—HO(carbonyl) hydrogen bond and a C(methylene)—Hπ interaction