FULVESTRANT INTERMEDIATE
A compound of formula (1) wherein R1 represents hydrogen or an acetyl group and R2 represents a methyl, acetyl, or benzyl group, is useful as an intermediate in making fulvestrant. The compound (1) can be isolated as a crystalline material and can be provided in a ratio of 7-alpha epimer to 7-beta e...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | A compound of formula (1) wherein R1 represents hydrogen or an acetyl group and R2 represents a methyl, acetyl, or benzyl group, is useful as an intermediate in making fulvestrant. The compound (1) can be isolated as a crystalline material and can be provided in a ratio of 7-alpha epimer to 7-beta epimer in the range of 95:5 to 100:0. |
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