4-Methylmorpholine → HCID 86741435, compound

Participants

Reaction Conditions

Reaction Steps

N-Methylmorpholine (0.028 ml.) and isobutyl chloroformate (0.038 ml.) were successively added to a stirred solution of 11-(3-benzyloxy-17β-hydroxyoestra-1,3,5(10)-trien-7α-yl)undec-10-enoic acid (0.109 g.) in tetrahydrofuran (3 ml.) which was cooled to -10° C. The mixture was stirred at -10° C. for 30 minutes, N-methylisobutylamine (0.05 ml.) was added and the mixture was stirred at laboratory temperature for 2 hours. Saturated aqueous sodium bicarbonate solution (5 ml.) was added and the mixture was extracted 3 times with methylene chloride (10 ml. each time). The combined extracts were washed with water (2 ml.), dried and evaporated to dryness, and there was thus obtained as oily residue N-isobutyl-N-methyl-11-(3-benzyloxy-17β-hydroxyoestra-1,3,5(10)-trien-7αyl)undec-10-enamide.

Provenance & Evidence