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Structure of (22S)-3β-acetoxy-20-(3-isopropylisoxazolin-5-yl)-4,4,14α-trimethylpregn-8(9)-ene

✍ Scribed by Lindeman, S. V. ;Alexanyan, M. S. ;Struchkov, Yu. T. ;Kumar Thaper, R. ;Reshetova, I. G. ;Kamernitzky, A. V.

Book ID
114508677
Publisher
International Union of Crystallography
Year
1992
Tongue
English
Weight
330 KB
Volume
48
Category
Article
ISSN
0108-2701

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CH,(18) + 14-CH3; 2.07, s CH,( 4) (CDCI,);not yet crystalli~ed]~). Finally, 8 was converted by catalytic hydrogenation [5%-Pd/C in ethanol/triethylamine; + 11 and cyclisation [HCl in acetic acid] into 3-oxo-17~-acetoxy-14a-methyl-A4-8a,9B,lOa,13a-estrene (12) [m.p. 86-88'; -[ U ] D = + 1' (CHC1,).