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1、CH2CH2O C R2O C R3O C R1CHOOOCH2OCOR1CHOCOR2CH2OCOR3+NaOHCH2OHCHOHCH2OH+R1COONaR2COONaR3COONa平均分子量=5631000皂化值CH2OCOR1CHOCOR2CH2OCOR3+3CH3OHCH2OHCHOHCH2OH+R1COOCH3R2COOCH3R3COOCH3RCOOCH3NiRCH2OHCH3OH+H2CH3(CH2)mCH=CH(CH2)nCOORH2O2CH3(CH2)mCH-CH(CH2)nCOOROCH2-O-C-R1CH2OOHOCOP OO-OCH2CH2N+(CH3)3R2CH2CH
2、2OOOHCOR1COP OO-OCH2CH2N+H3R2CH2HHO-CH-CH=CH-(CH2)2-CH3R-C-NHOP OO-CH2CH2N+(CH3)3OOABCD环戊烷并多氢菲环戊烷并多氢菲A A，B B，C C环为椅式构象，环为椅式构象，D D环为环为半椅式构象半椅式构象六个手性中心六个手性中心, ,理论上应有理论上应有6464（2626）种稠合方式，）种稠合方式，甾体激素是以甾体激素是以最稳定的全反式方式最稳定的全反式方式稠合成的稠合成的 ABCD12345678910111213171615141918BDACaeaeCH3CH3CH3CH3CH3CH3HHHHHHHHHH10131013101317 孕甾烷孕甾烷 10-CH10-CH3 3 13-CH 13-CH3 3 17-C 17-C2 2H H5 5 OHO睾丸酮17-17-羟基羟基- -4- -4-烯烯-3-3-酮酮雄甾雄甾OCOCH3黄体酮 孕甾孕甾-4-4-烯烯-3-3，20-20-二酮二酮CH3CH3HHHHOCH3CH3CH3胆甾醇7-脱氢胆甾醇脱氢胆甾醇麦角甾醇维生素D3HOOHOHCH3COOH胆汁酸HHHCH3CH3OH0睾丸酮素000OHOH00OHOHHO