Triethylamine → (2R*,4S*)-2-Benzyl-1-(9-fluorenoyl)-N-(4-quinolylmethyl)-N-trifluoroacetyl-4-piperidinamine

Participants

Reaction Steps

200 mg (0.467 mmol) of (2R*,4S*)-2-benzyl-N-(4-quinolylmethyl)-N-trifluoroacetyl-4-piperidinamine are reacted in analogy to Example 4a with 78 mg (0.562 mmol) of 9-fluorene carboxylic acid, 143 mg (0.561 mmol) of bis-(2-oxo-3-oxazolidinyl)phosphinic chloride and 144 μl (1.03 mmol) of triethylamine. The title compound (241 mg, 82%) is obtained as oil. TLC: methylene chloride/methanol/conc. ammonia (1000:50:1) Rf =0.58, FD-MS: M+ =619.

Provenance & Evidence