What is anti covid 19 heterocyclic compounds
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Viral Threat: Indian pharma catches China's COVID sickness
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‘Project restart’: Pros and cons
Concern has been expressed over the impact of the COVID-19, or the novel Coronavirus, on supplies in India, particularly the pharmaceutical industry. Is the industry really in trouble?
India’s dependence on China for supply of various imports—raw materials, intermediates, finished products—is significant. The largest Indian imports from China are those of machineries, and components. Various electrical and non-electrical machineries, industrial appliances, machine parts, and components comprise half of Indian imports from China. These are followed by imports of organic chemicals and fertilisers. With a share of around 12% in India’s total imports from China, organic chemicals are the third largest group in the latter. Within organic chemicals, imports required by the pharmaceutical industry are the largest. Heterocyclic nitrogen compounds and antibiotics are the largest organic chemical imports by China from India, accounting for almost 30% of such imports.
Answer:
The anti-dithietane-1,3-dioxide → syn-dithietane-1,3-dioxide isomerization reaction has been theoretically studied on the frame of MO theory both in the gas phase and in solution. In the gas phase the anti (IIa) ⇔ syn (IIs) equilibrium is slightly displaced to the anti isomer formation. The syn concentration ([Syn]) is ca. 36% in the gas phase, whereas in low polarity solvent, such as carbon tetrachloride, [Syn] is ca. 63%. In medium-high polarity solvents like acetonitrile and dimethyl-sulfoxide the [ anti]/[ syn ] ratio is ca. 0.37.
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