In an article, author is Li, SR, once mentioned the application of 199327-61-2, SDS of cas: 199327-61-2, Name is 7-Methoxy-6-(3-morpholinopropoxy)quinazolin-4(3H)-one, molecular formula is C16H21N3O4, molecular weight is 319.3556, MDL number is MFCD12760130, category is Isoxazoles. Now introduce a scientific discovery about this category.
Synthesis of new steroidal isoxazoles: Inhibitors of estrogen synthase
A novel class of steroidal A/B ring isoxazoles have been prepared by two independent reaction schemes using 3 beta,17 beta-diacetoxyandrost-5-ene (1) and 3 beta,17 beta-diacetoxyandrost-4-en-6-one (4) as synthetic precursors. The key common intermediate in these syntheses, 3 beta,17 beta-diacetoxyandrost-4-eno[6,5,4-c,d] isoxazole (3), was prepared by synthetic methods described in both schemes. Further chemical modification of 3 yielded 3 beta,17 beta-dihydroxyandrost-4-eno[6,5,4-c,d] isoxazole (6), androst-3,17-dione-4-eno[6,5,4-c,d] isoxazole (7), and 17 beta-hydroxyandrost-3-one-4-eno[6,5,4-c,d] isoxazole (9). Human placental estrogen synthase (aromatase) bioassays were conducted to obtain the following IC50 values resulting from a 50% reduction of enzymatic activity: 6, 120.5 mu M; 7, 1.889 mu M. 9, 18.57 mu M. (C) 1998 Elsevier Science Ltd. All rights reserved.
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Reference:
Isoxazole – Wikipedia,
,Isoxazole | C3H3NO – PubChem