Benzyl (S)-1-Methyl-2-(6-prop-2-ynyloxy-indazol-1-yl)-ethylcarbamate → Benzyl (S)-1-Methyl-2-(7H-pyrano[2,3-g]indazol-1-yl)-ethylcarbamate

Participants

Reaction Steps

The product from Step B (2.37 g, 6.53 mmol) was heated in mesitylene (40 mL) in a manner similar to that described in Example 4, Step B to give, following purification (silica, 20% to 50% ethyl acetate in hexane), an oil (1.01 g, 43%): LC/MS (+APCI) m/z 364 (M+H).

Provenance & Evidence