Benzopyran derivatives
    42.
    发明授权
    Benzopyran derivatives 失效
    BENZOPYRAN衍生物

    公开(公告)号:US4032540A

    公开(公告)日:1977-06-28

    申请号:US664316

    申请日:1976-03-05

    IPC分类号: C07D317/44

    CPC分类号: C07D317/44

    摘要: Benzopyran derivatives of the formula ##STR1## wherein R.sub.1 and R.sub.3 each are lower alkyl; n is the integer 1 or 2; --A--B-- is >CH--CH.sub.2 - or >CH=CH-; X is a free, esterified or etherified hydroxy group; and Y is H or X and Y collectively are =O; and W is --(CH.sub.2).sub.3 --Z--R.sub.4 ##STR2## --(CH.sub.2).sub.3 --COOR.sub.6 or --(CH.sub.2).sub.3 CN, wherein V is halogen, Z is a ketalized carbonyl group or a free, esterified or etherified hydroxymethylene group; R.sub.4 and R.sub.5 each are lower alkyl and R.sub.6 is alkyl, aryl or aralkyl, are valuable intermediates in the synthesis of steroids.

    17.alpha.-HYDROXY-1,3,5(10),15-ESTRATETRAENES AND PROCESS FOR THEIR
PRODUCTION
    43.
    发明授权
    17.alpha.-HYDROXY-1,3,5(10),15-ESTRATETRAENES AND PROCESS FOR THEIR PRODUCTION 失效
    17 {60-羟基-1,3,5(10),15-ESTRATETRAENES及其生产方法

    公开(公告)号:US4016269A

    公开(公告)日:1977-04-05

    申请号:US603773

    申请日:1975-08-11

    IPC分类号: C07J1/00 C07J17/00 A61K31/58

    CPC分类号: C07J1/0062 C07J17/00

    摘要: Novel estrogenic 17.alpha.-hydroxy-1,3,5(10),15-estratetraenes of the formula ##STR1## wherein R.sub.1 is H, lower alkyl or lower acyl, R.sub.2 is lower alkyl and R.sub.3 is H, lower alkyl, lower acyl or tetrahydropyranyloxy, are produced by (a) reacting a 16.alpha.,17.alpha.-epoxy-estratriene with lithium halide or HCl in glacial acetic acid; converting the resulting halohydrin into a 16-halo-17-tetrahydropyranyl ether; and splitting off hydrogen halide from therefrom; or (b) reacting the 16.alpha.,17.alpha.-epoxy-estratriene with diphenylselenide and alkali metal borohydride; oxidizing the thus-produced 17.alpha.-hydroxy-16.beta.-phenylselenide to the corresponding phenylselenide oxide; and forming the .DELTA..sup.15 double bond by heating with removal of phenyl--Se--OH.

    摘要翻译: 其中R 1是H,低级烷基或低级酰基,R 2是低级烷基,R 3是H,低级烷基,低级酰基,低级烷基,低级酰基, (a)使16α,17α-环氧 - 雌三醇与卤代卤化物或HCl在冰醋酸中反应制备; 将所得卤代醇转化为16-卤代-17-四氢吡喃基醚; 并从其中分离卤化氢; 或(b)使16α,17α-环氧 - 雌三烯与二苯基硒和碱金属硼氢化物反应; 将由此产生的17α-羟基-16β-苯基硒化物氧化成相应的苯基硒化物氧化物; 并通过除去苯基-Se-OH加热形成DELTA 15双键。