Parallel Modification of Tropane Alkaloids.-Reaction of 6,7dehydrotropine alcohol (III), derived from natural scopolamine (I), with isocyanates followed by removal of excess isocyanate by use of polymer-bound trisamine affords a range of urethanes (V) in parallel manner. Similarly, ureas of type (X) are obtained from the secondary amine (VIII). -(ABERLE, NICHOLAS S.; GANESAN, A.; LAMBERT, JOHN N.; SAUBERN, SIMON;
Book Reviews 489Europewhere instinctive hostility to aggressive religious proselytizing is compounded by widespread opposition to non-white immigration and racial antagonismis a daunting task. Worse still, conflicting views of mission and "mutual disqualification" between the migrant-established and homegrown German churches all but precludes meaningful support and collaborative endeavor.All this said, the lore of Christian missions is replete with remarkable breakthroughs in the face of apparently insurmountable odds, acute cultural conflict, quixotic approaches, and selfinflicted wounds. It is God's mission after all, and it variably emanates from the margins.
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