摘要:
An optically active (2S,5R)-7-oxo-1,6-diazabicyclo[3.2.1]octane-2-carboxylic acid compound defined by the following formula (F): wherein R1 represents CO2R, CO2M, or CONH2, wherein R represents an allyl group or a benzyl group, and M represents a hydrogen atom, an inorganic cation, or an organic cation; and R2 represents a benzyl group or an allyl group.
摘要:
A method for producing a compound represented by formula (1):
or a salt thereof, comprising:
a step B of producing a compound represented by formula (3):
[in the formula (3), Boc represents a tert-butoxycarbonyl group]
or a salt thereof by using a compound represented by formula (2):
[in the formula (2),
Ra represents a hydrogen atom or an optionally substituted arylmethyl group, Rb represents an optionally substituted alkyl or cyclic alkyl group, R3 represents a hydrogen atom, a halogen atom, or a thiazol-2-yl group, and Xa represents a hydrogen atom or a halogen atom] or a salt thereof; and a step C of producing the compound represented by the formula (1) or the salt thereof by using the compound represented by the formula (3) or the salt thereof.
摘要:
A process for preparing the compound of the following formula (E): wherein Bn represents a benzyl group, and tBu represents a tert-butyl group, the process including: (a) subjecting the following compound (B) to trifluoroacetylation, wherein tBu represents a tert-butyl group to produce the following compound (C): wherein tBu represents a tert-butyl group, and TFA represents a trifluoroacetyl group; (b) reacting the compound (C) with benzyloxyamine in the presence of a hydroxyl group activating agent to produce the following compound (D): wherein Bn represents a benzyl group, tBu represents a tert-butyl group, and TFA represents a trifluoroacetyl group; and (c) subjecting the compound (D) to detrifluoroacetylation.
摘要:
A compound of the following compound (B): , wherein tBu represents a tert-butyl group. A compound of the following compound (C): , wherein tBu represents a tert-butyl group, and TFA represents a trifluoroacetyl group.