- COMBINATION DRUG
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The present invention provides pharmaceutical agents comprising a dipeptidyl peptidase IV (DPPIV) inhibitor and a biguanide agent in combination, which enhance the effects of active circulating glucagon-like peptide-1 (GLP-1) and/or active circulating glucagon-like peptide-2 (GLP-2).
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Page/Page column 77
(2010/02/12)
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- Condensed imidazole derivatives
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The present invention is related to compounds represented by the following formula, or salts or hydrates thereof wherein, T1 represents a 4- to 12-membered heterocyclic group containing one or two nitrogen atoms in the ring, which is a monocyclic or bicyclic structure that may have one or more substituents; X represents a C1-6 alkyl group which may have one or more substituents, or such; Z1 and Z2 each independently represent a nitrogen atom or a group represented by the formula —CR2—; R1 and R2 independently represent a hydrogen atom, a C1-6 alkyl group which may have one or more substituents, or a C1-6 alkoxy group which may have one or more substituents, or such. These are novel compounds that exhibit an excellent DPPIV-inhibiting activity.
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- A one-pot preparation of 1-benzyl-2'-deoxyinosine from ionized 2'-deoxyinosine
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A simple and one step synthetic method for the formation of 1-benzyl-2'-deoxyinosine was developed by direct benzylation of ionized 2'-deoxyinosine. Treatment of 2'-deoxyinosine, in the presence of NaOH, with benzyl bromide in 2,2,2-trifluoroethanol (TFE) or N,N-dimethylaetamide (DMA) gave 1-benzyl-2'-deoxyinosine in 35% and 80% yields, respectively.
- Moon,Kim
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p. 1135 - 1143
(2007/10/03)
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- Process for producing purine derivatives
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Purine derivatives in which a desired substituent is introduced into the 9-position only are synthesized by first introducing an easily-removable substituent in the 7-position of a purine base of natural purine nucleosides obtained through fermentation or derivatives thereof, then hydrolyzing the ribose moiety to form purine derivatives having the substituent in the 7-position, subsequently introducing the desired substituent in the 9-position, and then removing the substituent in the 7-position.
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- Purines. LX. Dimroth rearrangement and concomitant hydrolytic deamination of 7-alkyl-1-methyladenines
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The Dimroth rearrangement of 7-alkyl-1-methyladenines (8) to produce 7- alkyl-N6-methyladenines (9) (63-72% yield) has been found to be accompanied with unusual hydrolytic deaminations to give 7-alkyl-1-methyl-hypoxanthines (10) (1-3.5%) and/or 7-alkylhypoxanthines (11) (12-22%), when effected in boiling H2O for 4-70 h. Probable pathways leading to these by-products are proposed.
- Fujii,Saito,Ii,Suzuki
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p. 382 - 384
(2007/10/02)
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- Cyclic homologs of xanthines. I. Imidazo[4,5-e][1,4]diazepine-5,8-diones
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A useful synthetic approach to variously alkylated 4,5,7,8-tetrahydro-6H-imidazo[4,5-e][1,4]diazepine-5,8-diones is reported. These compounds are potentially interesting cyclic homologs of pharmacologically important alkylxanthines.
- Bridson,Weirich
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p. 1179 - 1182
(2007/10/02)
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