A pharmaceutical formulation comprising 5-methoxy psoralen, which is useful in the treatment of psoriasis and other skin disorders, is disclosed herein. 5-methoxy psoralen may be synthesized from phloroglucinol by a five step process which is also disclosed.
"This is a continuation of application Ser. No. 07/749,491, filed Aug. 15, 1991, now abandoned which in turn is a continuation of Ser. No. 07/352,705 filed May 10, 1989, now abandoned which is a continuation of Ser. No. 07/201,384 filed May 31, 1988, now abandoned which is a continuation of Ser. No. 06/825,783, filed Feb. 3, 1986, now abandoned which is a continuation of Ser. No. 06/724,496 filed Apr. 18, 1985, now abandoned which is a continuation of Ser. No. 547,974 filed Nov. 2, 1983, now abandoned which is a Div. of Ser. No. 06/195,414 filed Oct. 9, 1980, now abandoned which is a continuation of Ser. No. 05/953,118 filed Oct. 20, 1978, now abandoned.
