Hemorrhagic manifestation in different etiologies of pancytopenia: A prospective, cross-sectional study.

Background: Pancytopenia is a triage of anemia, leukopenia, and thrombocytopenia. The etiology causing pancytopenia varies depending upon factors such as age, sex, occupation, and geographical distribution. Unfortunately, the major treatises of hematology have not given emphasis on the hemorrhagic manifestation of different etiologies causing pancytopenia.

1-(2-Furo-yl)-3-(2-meth-oxy-4-nitro-phen-yl)thio-urea.

The asymmetric unit of the title compound, C13H11N3O5S, contains two independent mol-ecules, which are linked by a pair of inter-molecular N-H⋯S hydrogen bonds, forming an R2(2)(8) ring motif. The central thio-urea core forms dihedral angles of 3.02 (12) and 14.

3-[(Furan-2-yl)carbon-yl]-1-(pyrimi-din-2-yl)thio-urea.

The title compound, C10H8N4O2S, was synthesized from furoyl isothio-cynate and 2-amino-pyrimidine in dry acetone. The two N-H groups are in an anti conformation with respect to each other and one N-H group is anti to the C=S group while the other is syn. The amide C=S and the C=O groups are syn to each other.

N-(1,3-Thia-zol-2-yl)-N'-[(thio-phen-2-yl)carbon-yl]thio-urea hemihydrate.

The title compound, C9H7N3OS3·0.5H2O, crystallizes with two independent but similar mol-ecules in the asymmetric unit, both of which are linked by a water mol-ecule through O-H⋯N hydrogen bonds. In addition the water O atom is further linked by N-H⋯O hydrogen bonds to two additional main mol-ecules, forming a tetra-meric unit.

1-(Naphthalen-1-yl)-3-[(thio-phen-2-yl)carbon-yl]thio-urea.

In the title compound, C(16)H(12)N(2)OS(2), the dihedral angles between the mean planes of the central thio-urea core and the thio-phene ring and the naphthalene ring system are 1.8 (2) and 6.45 (18)°, respectively.

Methyl 2-(thio-phene-2-carboxamido)-benzoate.

The title compound, C(13)H(11)NO(3)S, was synthesized from methyl anthranilate, triethyl-amine and 2-thio-phenoyl chloride in benzene. The mol-ecular conformation is stabilized by an intra-molecular N-H⋯O hydrogen bond. The dihedral angle between the rings is 2.