Method and intermediates for preparing 2-alkoxy and 2-aryloxy estrogen compounds
    15.
    发明申请
    Method and intermediates for preparing 2-alkoxy and 2-aryloxy estrogen compounds 有权
    制备2-烷氧基和2-芳氧基雌激素化合物的方法和中间体

    公开(公告)号:US20100099141A1

    公开(公告)日:2010-04-22

    申请号:US12285901

    申请日:2008-10-16

    IPC分类号: C12P33/00 C07J51/00

    摘要: The present invention relates to a method for preparing 2-alkoxy and 2-aryloxyestrogen compounds, and the intermediate compounds prepared during the use of this method, which intermediate compounds are useful intermediates in the preparation of certain physiologically active compounds.

    摘要翻译: 本发明涉及一种制备2-烷氧基和2-芳氧基雌激素化合物的方法,以及在该方法的使用中制备的中间体化合物,该中间体化合物是制备某些生理活性化合物的有用中间体。

    Synthesis of 6-methylene derivatives of androsta-1,4-diene-3,17-dione

    公开(公告)号:US4970327A

    公开(公告)日:1990-11-13

    申请号:US294016

    申请日:1989-01-06

    摘要: The invention relates to a new process for the preparation of know aromatase inhibitors of the following formula (I) ##STR1## wherein each of R.sub.1 R.sub.3, independently, is hydrogen or C.sub.1 -C.sub.6 alkyl;R.sub.2 is hydrogen, halogen or C.sub.1 -C.sub.6 alkyl; andR.sub.4 is hydrogen or fluorine;the process comprising submitting to Mannich reaction a compound of formula (II) ##STR2## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are defined above and R is a lower alkyl group, and then dehydrogenating the respective 6-methylene-3-oxo-.DELTA..sup.4 -steroid derivative thus obtained, by methods known per se.

    Process for the preparation of methylene derivatives of
androsta-1,4-diene-3,17-dione
    20.
    发明授权
    Process for the preparation of methylene derivatives of androsta-1,4-diene-3,17-dione 失效
    雄甾-1,4-二烯-3,17-二酮的亚甲基衍生物的制备方法

    公开(公告)号:US4876045A

    公开(公告)日:1989-10-24

    申请号:US242854

    申请日:1988-09-12

    IPC分类号: A61K31/565 A61P35/00 C07J1/00

    CPC分类号: C07J1/0011 C07J1/0022

    摘要: The invention relates to a new process for the preparation of known aromatase inhibitors of the following formula ##STR1## wherein each of R.sub.1 and R.sub.3, independently, is hydrogen or C.sub.1 -C.sub.6 alkyl;R.sub.2 is hydrogen, halogen or C.sub.1 -C.sub.6 alkyl andR.sub.4 is hydrogen or fluorine; the process comprising subjecting to Mannich reaction a compound of formula ##STR2## wherein R.sub.1,R.sub.2,R.sub.3 and R.sub.4 are as defined above, and then oxidizing the respective 6-methylene derivative thus obtained by methods known per se.