Partial Structure of Papiliochrome, the Yellow Wing Pigment of the Papilionid Butterflies
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چکیده
Papiliochrome II, one of the yellow wing pigments of the Papilionid butterfly, Papilio xuthus, can be split into L-kynurenine and a catecholamine derivative, SN-1, by 10—3 n HCI. The latter is hydrolyzed by n HCI into /^-alanine and noradrenaline. The structure of SN-1 has been elucidated as N-(/?-alanyl)-L-noradrenaline by NM R and MS data as well as by synthesis. Preparation of the N-hydroxysuccinimide ester of benzyloxycarbonyl-/?-alanine, its condensation with L-noradrenaline to the corresponding benzyloxycarbonyl protected SN-1 and of N(/?-alanyl) -L-noradrenaline by hydrogenolysis of the protecting group are described.
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تاریخ انتشار 2013