Method for the preparation of highly pure 1-androstene...

Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...

Reexamination Certificate

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C546S061000

Reexamination Certificate

active

07038050

ABSTRACT:
A method for preparing a 1-androstene derivative which comprises reacting a 2-iodo-androstane derivative with an oxidizing agent while maintaining the pH of the reaction mixture at a specific range gives the 1-androstene derivative with high purity and yield.

REFERENCES:
patent: 4760071 (1988-07-01), Rasmusson et al.
patent: 5084574 (1992-01-01), Bhattacharya et al.
patent: 5091534 (1992-02-01), King et al.
patent: 5116983 (1992-05-01), Bhattacharya et al.
patent: 5120847 (1992-06-01), King et al.
patent: 0 298 652 (1989-01-01), None
patent: 0 428 366 (1991-05-01), None
patent: 0428366 (1991-05-01), None
patent: 0 473 225 (1992-03-01), None
patent: 0473225 (1997-07-01), None
patent: 9001206 (1990-02-01), None
patent: 9615038 (1996-10-01), None
Gary H. Rasmusson et al., “Azasteroids as Inhibitors of Rat Prostatic 5α-Reductase”,J. Med. Chem.,vol. 27, 1984, pp. 1690-1701.

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