HCID 18658030, compound → HCID 67685545, compound

Participants

Reaction Steps

1.02 g (4.51 mmol) of the compound (25) obtained in step e' were dissolved in 20 ml of ethanol, 40 mg of 5 wt % Pd--CaCO3 /Pb (Lindlar catalyst) were added thereto, and the resultant solution was strongly stirred in a hydrogen atmosphere. The solid product in the reaction solution was filtered with Celite, and the solvent was distilled at a reduced pressure, thereby obtaining a white crystal. This crystal was recrystallized from a dichloromethane/hexane solution mixture to obtain 967 mg (4.24 mmol) of a white fibrous compound (26) (yield:94%). The physical data of the resultant compound (26) were as follows:

Provenance & Evidence