O(6)-Benzylguanine|CAS 19916-73-5|DC Chemicals

Cas No.:	19916-73-5
Chemical Name:	6-(benzyloxy)-1H-purin-2-amine
Synonyms:	O(6)-Benzylguanine; CCRIS 9383; CCRIS9383; CCRIS-9383; NSC637037; NSC 637037; NSC-637037
SMILES:	NC(N=C1OCC2=CC=CC=C2)=NC3=C1NC=N3
Formula:	C₁₂H₁₁N₅O
M.Wt:	241.25
Purity:	>98%
Sotrage:	2 years -20°C Powder, 2 weeks 4°C in DMSO, 6 months -80°C in DMSO

Description:	O6-Benzylguanine, a guanine analog, is the DNA repair enzyme O6-alkylguanine-DNA alkyltransferase (MGMT/AGT) inhibitor. O6-Benzylguanine acts as an AGT substrate, which transfers its benzyl group to the AGT cysteine residue, thereby irreversibly inactivating AGT and preventing DNA repair. O6-Benzylguanine induces tumor cell apoptosis. Antineoplastic activity[1][2].
In Vivo:	O6-Benzylguanine (100 μg; i.p.; daily for 35 days) inhibits pancreatic cancer cell growth and increases pancreatic cell sensitivity to Gemcitabine (100 mg/kg)[2]. O6-Benzylguanine inhibits pancreatic cancer cell proliferation and induces tumor cell apoptosis in vivo[2]. Animal Model: Male athymic nude mice (NCI-nu) (bearing human pancreatic cancer L3.6pl cells)[2] Dosage: 100 μg Administration: i.p; daily for 35 days Result: Significantly decreased median tumor volume and weight.
In Vitro:	O6-Benzylguanine, a guanine analog, is the DNA repair enzyme O6-alkylguanine-DNA alkyltransferase (MGMT/AGT) inhibitor. O6-Benzylguanine acts as an AGT substrate, which transfers its benzyl group to the AGT cysteine residue, thereby irreversibly inactivating AGT and preventing DNA repair. O6-Benzylguanine induces tumor cell apoptosis. Antineoplastic activity[1][2].
References:	[1]. Rabik CA, Njoku MC, Dolan ME. Inactivation of O6-alkylguanine DNA alkyltransferase as a means to enhance chemotherapy. Cancer Treat Rev. 2006;32(4):261‐276. [2]. Konduri, Santhi D et al. Blockade of MGMT expression by O6 benzyl guanine leads to inhibition of pancreatic cancer growth and induction of apoptosis. Clinical cancer research : an official journal of the American Association for Cancer Research vol. 15,19 (2009): 6087-95.

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