C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
260/230, 260/355
C07D 313/00 (2006.01) C07D 407/06 (2006.01) C07D 493/04 (2006.01) C07H 15/04 (2006.01) C07H 17/08 (2006.01)
Patent
CA 1119588
PROCESS OF PRODUCING NOVEL MACROLACTONE DERIVATIVES ABSTRACT By protecting the aldehyde group of a macrolide series anti- biotics with a cyclic acetal or thioacetal, novel macrolide deri- vatives can be produced from the macrolide series antibiotics by releasing successively the sugar moieties bonded to the macrolide antibiotics. The novel macrolide derivative obtained by this invention, that is, the derivatives of a macrolide series antibiotics produ- ced by releasing partially or wholly the sugar moieties bonded are useful as intermediates for producing novel macrolide series anti- biotics.
298457
Tatsuta Kuniaki
Umezawa Hamao
Umezawa Sumio
Johnson Douglas S. Q.c.
Zaidan Hojin Biseibutsu Kagaku Kenkyu Kai
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