Method for preparing hypocrellin

Details Method for preparing hypocrellin Method for preparing hypocrellin

2009-12-08

2010-10-19

Witherspoon, Sikarl A (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

C568S315000

Reexamination Certificate

active

07816563

ABSTRACT:
Improved methods of preparing hypocrellin B from 4,9-dihydroxy-3,10-perylenequinones are described.

REFERENCES:
patent: 7157477 (2007-01-01), Zhang et al.
patent: 2005/0143406 (2005-06-01), Miller
patent: WO98/33470 (1998-08-01), None
O'Brien et al. Perylenequinone Natural Products: Total Synthesis of Hypocrellin A. Journal of Organic Chemistry, 2010, vol. 75 (1), p. 57-68.
Liu et al. Synthetic studies in novel hypocrellin B derivatives. Tetrahedron, 1993, vol. 49 (47), p. 10785-10792.

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