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Cypridina bioluminescence VI a new route for the synthesis of cypridina luciferin and its analogs

✍ Scribed by S. Inoue; S. Sugiura; H. Kakoi; T. Goto

Publisher: Elsevier Science
Year: 1969
Tongue: French
Weight: 106 KB
Volume: 10
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(01)87958-2

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✦ Synopsis

A total synthesis of Cypridina luciferin (I), a bioluminescent substance obtained from Cypridina hilgendorfii (l), was achieved in 1966 (2) by reductive condensation of an appropriate 2-aminopyrazine derivative and a-keto acid, but the yield was too low to use th!s route for preparative purposes. Two routes for the synthesis of 3,7-dihydroimidazo[1,2:a]pyrazin-3-one ring system have since been developed. The one (3) consists of the condensation of a P-bromopyrazine derivative and an a-amino acid ester followed by cyclization by

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