The second fraction (250 mg.) was a mixture of XIX and V.The third fraction (750 mg.) was mostly V. It was rechromatographed and crystallized three times from methanol to give 600 mg. of pure V.The fourth fraction (100 mg.) was crystallized twice from methanol, m.p. 137-139°. It was identified as VII. It had infrared bands at 3.05 and 4.8 µ; X"^hano! 233 µ (e 15,000); n.m.r.peaks 55 (18-methyl), 62.5 (19-methyl), 105 with half-band width of 2 c.p.s.
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