Process for preparing .gamma.-butyrolactone derivatives, and...

Details Process for preparing .gamma.-butyrolactone derivatives, and... Process for preparing .gamma.-butyrolactone derivatives, and...

C - Chemistry, Metallurgy

07

D

260/362, 260/366

C07D 307/32 (2006.01) C07D 307/33 (2006.01) C07D 307/58 (2006.01) C07D 307/94 (2006.01)

Patent

CA 1269389

ABSTRACT OF THE DISCLOSURE There are disclosed .gamma. -butyrolactone derivatives represented by the following formula Image wherein R1, R2, R3 and X each represent a group or an atom as defined in the specification; and an immunomodulating composition containing the same as an active ingredient.

462471

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