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Identify the reagents 3: June 2021

In 1981 Oppolzer published a short, racemic synthesis of Lysergic acid. Below is a scheme of the early steps in the synthesis. Can you identify reagents or intermediates G, I and H? Answers and a reference will be posted in late June, along with another problem. Enjoy!  

Identify the reagents 2: answers

Last month I posted a scheme from a paper by a team from Merck describing the synthesis of a soluble guanylate cyclase (cGC) stimulator of interest for the treatment of hypertension and asked if you could identify reagents or intermediates B, F, and the target compound H. Below are the answers! You can read more here in

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