中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
美雌醇 | mestranol | 72-33-3 | C21H26O2 | 310.436 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 3-methoxy-17-(3-methylisoxazol-5-yl)estra-1,3,5(10)-trien-16α,17α-diol | 218440-79-0 | C23H29NO4 | 383.488 |
—— | 17α-hydroxy-3-methoxy-17-(3-methylisoxazol-5-yl)estra-1,3,5(10)-trien-16-one | 218440-82-5 | C23H27NO4 | 381.472 |
—— | 16α,17α-epoxy-3-methoxy-17-(3-methylisoxazol-5-yl)estra-1,3,5(10)-triene | 218440-78-9 | C23H27NO3 | 365.472 |
—— | 17α-hydroxy-3-methoxy-17-(3-methylisoxazol-5-yl)estra-1,3,5(10)-trien-16α-yl acetate | 218440-80-3 | C25H31NO5 | 425.525 |
—— | Benzoic acid (8R,9S,13S,14S,16R,17S)-17-hydroxy-3-methoxy-13-methyl-17-(3-methyl-isoxazol-5-yl)-7,8,9,11,12,13,14,15,16,17-decahydro-6H-cyclopenta[a]phenanthren-16-yl ester | 218440-81-4 | C30H33NO5 | 487.596 |
—— | 3-methoxy-17-(3-methylisoxazol-5-yl)estra-1,3,5(10),16-tetraene | 218440-74-5 | C23H27NO2 | 349.473 |
—— | (17S)-3-methoxy-5'-methylspiro[estra-1,3,5(10)-triene-17,2'-tetrahydrofuran-3'-ol] | 359633-48-0 | C23H32O3 | 356.505 |
—— | (17S)-3-methoxy-5'-methylspiro[estra-1,3,5(10)-triene-17,2'-tetrahydrofuran-3'-one] | 359633-53-7 | C23H30O3 | 354.489 |
—— | (17S)-3-methoxy-5'-methylspiro[estra-1,3,5(10)-triene-17,2'-(2',3'-dihydrofuran)-3'-one] | 359633-47-9 | C23H28O3 | 352.474 |
—— | spiro[((17S)-16α-acetoxy-3-methoxyestra-1,3,5(10)-triene)-17,2'-(5'-methylfuran-3'(2'H)-one)] | 218440-92-7 | C25H30O5 | 410.51 |
—— | spiro[((17R)-16β-bromo-3-methoxyestra-1,3,5(10)-triene)-17,2'-(5'-methylfuran-3'(2'H)-one)] | 218440-90-5 | C23H27BrO3 | 431.37 |
Synthesis of 17β-isoxazolyl steroids and their transformations into the corresponding spiro[steroid-17,2'-furanone]s are described. The reaction sequence consists of the 1,3-dipolar cycloaddition of a nitrile oxide to mestrenol, dehydration, epoxidation or dihydroxylation, cleavage of the isoxazole moiety and cyclization of intermediate enamino ketones.