| 摘要 |
<p>Disclosed is a cyclic amine of the formula (XX) wherein when n1 is zero and p1 is 1, X1 or O, S or SO2; and when n1 and p1 are each zero, X1 is S, SO2 or O=O, which is useful for preparing a sweetening agentof the formula (X) wherein Ra is C1-C3 alkyl and R is A radical derived from the above amine.</p> |
