sodium 3-{[(5-methyl-1,3,4-thiadiazol-2-yl)sulfanyl]methyl}-8-oxo-7-[(1H-tetrazol-1-ylacetyl)amino]-5-thia-1-azabicyclo[4.2.0 : Aronis compounds, collection of screening compounds for high throughput screening, building blocks and fine organic compound samples, custom synthesis