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Efficient synthesis of pyropheophorbide a and its derivatives
Efficient synthesis of pyropheophorbide a and its derivatives
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机译:焦脱镁叶绿酸a及其衍生物的高效合成
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摘要
A process for the preparation of pyropheophorbide a and its derivatives, including 3-devinyl-3-(1′-hexyloxy)ethyl-pyropheophorbide-a, otherwise known as HPPH, is provided. The process involves treating chlorin e6, in the form of its trimethyl ester, with a base, followed by heating to give pyropheophorbide a, which is converted to HPPH by treatment with acid, followed by hexyl alcohol under basic conditions.
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