反应详情

The title compound was prepared from 3.7 g (80% purity, 18.0 mmol) 6-fluoro-1H-indazole-5-carbaldehyde (Example 19A) and 2.08 g (19.84 mmol) sodium (1Z)-1-cyanoprop-1-en-2-olate in analogy to the procedure described in Example 2A yielding 2.5 g (61% of th.) of product which was used in subsequent steps without further purification.

1. customyielding 2.5 g (61% of th.) of product which
2. customwas used in subsequent steps without further purification