", acetates, such as ethyl acetate, acetonitrile, acetic acid or ethers such as terahydrofuran, dioxane, tertiary-butyl methyl ether, or binary or ternary mixtures of such non-solvents, to which sufficient water is added to form a monohydrate, and stirring the suspension at or below ambient temperatures (e.g. 0 to 30??? C.) for a time sufficient to form a monohydrate." . . . .