Process for producing 1,3-substituted tetrahydro-1H-thieno-[3,4-

Details Process for producing 1,3-substituted tetrahydro-1H-thieno-[3,4- Process for producing 1,3-substituted tetrahydro-1H-thieno-[3,4-

1990-07-23

1992-02-04

Lee, Mary C.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D47300

Patent

active

050861859

ABSTRACT:
Process for the preparation of 1,3-substituted tetrahydro-1H-thieno-[3,4-d]-imidazol-2(3H)-on-4-ylidene pentanoic acid esters which are intermediate products for the production of the pharmaceutic active substance (+)-biotin.

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