摘要 |
A sphingomyelin analog represented by the following formula wherein R<SUP>1 </SUP>is C<SUB>1-20 </SUB>alkyl group, R<SUP>2 </SUP>is C<SUB>1-20 </SUB>alkyl group, aryl group or C<SUB>1-6 </SUB>alkyl group substituted by aryl group, and Z is photoaffinity-labeled group, or its optically active compound.
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