+++Thanks_ddtadd_1 article from heterocycles

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■ Chiral Synthesis of Phosphodiesterase Inhibitor, (R)-(-)-Rolipram, by Means of Enantioselective Deprotonation Strategy

Toshio Honda, Fumihiro Ishikawa, Kazuo Kanai, Shigeki Sato, Daishiro Kato, and Hideo Tominaga
Heterocycles, Vol 42, No. 1, 1996, pp.109-112

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https://www.heterocycles.jp/newlibrary/payments/form/06180/PDF

DOI:

http://dx.doi.org/10.3987/COM-95-S33

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