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(2007/10/02)9-Ethyl-1-[(Z)-4-methoxy-phenylimino]-9a-oxo-3,4,9,9a-tetrahydro-1H-2-thia-4a,9-diaza-9aλ5-phospha-anthracen-10-one
1-[(Z)-4-Chloro-phenylimino]-9-ethyl-9a-oxo-3,4,9,9a-tetrahydro-1H-2-thia-4a,9-diaza-9aλ5-phospha-anthracen-10-one
9-Ethyl-9a-oxo-1-[(Z)-p-tolylimino]-3,4,9,9a-tetrahydro-1H-2-thia-4a,9-diaza-9aλ5-phospha-anthracen-10-one
9-Ethyl-9a-oxo-1-[(Z)-phenylimino]-3,4,9,9a-tetrahydro-1H-2-thia-4a,9-diaza-9aλ5-phospha-anthracen-10-one