Sodium Hydroxide → HCID 20164796, compound

Participants

Reaction Steps

216 mg of α-[6-(1-ethoxycarbonyl-3-phenylpropylamino)-2-(1-naphthyl)-5-oxoperhydro-1,4-thiazepin-4-yl]acetic acid prepared as described in Example 37, were mixed with 2 ml of a 1N aqueous solution of sodium hydroxide, and the mixture was stirred for 16 hours at room temperature. A small amount of insolubles was filtered off and the pH of the filtrate was adjusted to a value of 2.0 by adding 1N hydrochloric acid; the resulting powdery compound was collected by filtration and washed with a small amount of water, to yield 201 mg of the title compound.

Provenance & Evidence