In order to explain the special antibiotic activity of urine, various chromatographic techniques were applied to separate and purify the key component from the healthy male urine. The structure of purified component was identified by mass spectrometry and NMR. The results indicated that the substance separated from the male urine was trimethoprim. This is the first report of trimethoprim separated from urine.
The first example of homochiral two dimensional neutral cobalt? 3 amino (S) tyrosine (ATYR) coordination polymer, bis(3 amino (S) tyrosinato )cobalt? 1 was synthesized under the hydrothermal reaction of Co(ClO4)2 ·6H2O with ATYR in which 1 displays modest second harmonic generation response. CCDC: 214275.
